## Hedgehogs May Be Talking — We Just Can't Hear Them

For years, we assumed hedgehogs communicated through a repertoire of snuffles, grunts, and snorts. But groundbreaking new research suggests these spiny creatures may have a far richer acoustic world than we ever imagined — one that operates entirely beyond the limits of human hearing.

Scientists have formally measured the hearing range of the European hedgehog for the first time, and the results have surprised even the researchers behind the study.

## What the Research Found

Led by Dr. Sophie Rasmussen at the University of Oxford, the research team collaborated with bio-acousticians — specialists who measure hearing in animals — to design a series of audio pulses and tones. These were played to anaesthetised hedgehogs sourced from a local rescue centre, while researchers monitored the animals' brain activity to determine exactly which sound frequencies they could detect.

The findings were striking. Hedgehogs can hear sounds up to **85kHz** — well into the ultrasonic range. To put that in perspective:

- **Humans** hear up to 20kHz
- **Dogs** hear up to 45kHz
- **Cats** hear up to 65kHz

Anything above 20kHz is classified as ultrasound, meaning hedgehogs are operating in an acoustic realm completely inaudible to us.

### The Secret Is in the Ear Structure

To understand how hedgehogs achieve this, the team constructed a detailed 3D model of a hedgehog's ear. They discovered it contains a rigid chain of small bones that efficiently conducts high-frequency sounds — a mechanism strikingly similar to that found in echolocating bats.

This structural adaptation allows hedgehogs to pick up ultra-high-pitched signals with remarkable clarity, hinting that the animals may be exchanging information through sounds we have never been able to detect.

## Why This Discovery Matters for Conservation

The European hedgehog is classified as near-threatened by the International Union for Conservation of Nature, and populations across the UK and Europe have been declining steadily. Thousands are killed on roads each year, many by cars, lawnmowers, and garden strimmers.

Dr. Rasmussen believes this discovery could be a genuine **game-changer** for hedgehog conservation. With a precise understanding of their hearing range, scientists and engineers may now be able to develop targeted ultrasonic repellents — devices that emit sounds hedgehogs find alarming, deterring them from dangerous areas without disturbing humans or domestic pets.

"It's amazing because this allows us to actually build targeted sound repellents that wouldn't bother us or our pets," said Rasmussen.

Interestingly, some vehicles already use ultrasonic whistles to deter large animals such as deer. The Society of Motor Manufacturers and Traders (SMMT) confirmed such devices are widely available to consumers, though Chief Executive Mike Hawes noted that further research is needed to verify their specific effectiveness for hedgehogs.

## Protecting Hedgehogs in Rescue Centres

Beyond road safety, the research has important implications for the thousands of hedgehogs taken into rescue centres across the UK each year. These facilities may unknowingly expose animals to distressing sounds — such as the high-frequency hum of machinery — that humans cannot perceive but hedgehogs can hear clearly.

Understanding their hearing sensitivity could allow rescue centres to create quieter, less stressful environments for recovering animals.

## Are Hedgehogs Secretly Chatty?

Perhaps the most intriguing implication of the study is the possibility that hedgehogs are far more communicative than we realised. Observers have long noticed that hedgehogs appear to interact when they encounter one another — but assumed this was driven by scent rather than sound.

Dr. Rasmussen isn't so sure. "When hedgehogs pass by each other, you can tell that they are interacting. Maybe that's just chemical reactions to smelling each other," she said. "But imagine that they're actually blabbering all the time and we just couldn't hear it."

Further research is now needed to identify which specific sounds trigger a response in hedgehogs — whether sharp, sudden noises or rhythmic pulsating tones prove more effective as deterrents. Researchers are also keen to ensure that any sound-based devices do not discourage hedgehogs from frequenting gardens, which have become a critical habitat as rural landscapes grow increasingly inhospitable.

The full study has been published in the journal *Biology Letters*.

Scientists discover hedgehogs can hear up to 85kHz, far beyond humans. Learn how this breakthrough could transform hedgehog conservation efforts.

Hedgehog Hearing Range Discovered at 85kHz

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Hedgehogs Can Hear Far Beyond Human Range — And It Could Save Their Lives

## This Week's Most Fascinating Science Stories

From the relationship between physical activity and cognitive health to surprising discoveries about hedgehog hearing, science continues to deliver remarkable insights. The Guardian's science editor Ian Sample sat down with Madeleine Finlay to break down three of the most compelling research stories making headlines this week.

## Exercise and Its Impact on Brain Function

One of the week's standout studies delves into the connection between regular physical activity and brain health. Researchers have been examining how exercise influences cognitive performance and overall neurological well-being. The findings add to a growing body of evidence suggesting that staying physically active isn't just good for the body — it plays a critical role in maintaining and even enhancing how the brain operates. This research has significant implications for public health strategies aimed at reducing cognitive decline.

## Hedgehogs Can Hear Ultrasound — And It Could Save Their Lives

In a surprising zoological breakthrough, scientists have discovered that hedgehogs possess the ability to detect high-frequency ultrasound. This finding opens up exciting possibilities for wildlife conservation, particularly when it comes to protecting these small mammals from road traffic — one of the leading causes of hedgehog fatalities.

### Using Sound to Protect Wildlife

Researchers are now exploring whether ultrasound repeller devices could be strategically deployed near roads to deter hedgehogs from venturing into dangerous areas. If effective, this approach could represent a low-cost, non-invasive conservation method with real-world applications across urban and rural environments alike.

## Can Biased AI Tools Change What You Believe?

The third story tackles a question with profound societal implications: can artificial intelligence influence human beliefs? New research has investigated how biased AI-powered autocomplete tools — the kind embedded in search engines and writing assistants — can subtly shape the opinions and convictions of users over time.

The study raises important questions about transparency, accountability, and the ethical design of AI systems. As these tools become increasingly embedded in daily life, understanding their potential to nudge users toward certain viewpoints becomes critically important for both developers and consumers.

## Why These Stories Matter

Taken together, these three stories reflect the broad and deeply human concerns that modern science continues to address — our health, our environment, and our relationship with technology. Each finding, while distinct in subject, underscores the importance of curiosity-driven research and its power to shape a better-informed world.

Explore how exercise affects brain health, why hedgehogs can hear ultrasound, and how biased AI autocomplete tools may influence human beliefs.

Exercise, Hedgehog Hearing & AI Beliefs: Top Science Stories

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How Exercise Boosts Brain Health, Hedgehog Ultrasound Discoveries, and AI's Influence on Human Beliefs

## A Young American Photographer Finds His Eye in Nottingham

Fifty years ago, a 20-year-old John Dean stepped off a plane and into a city he knew almost nothing about. Armed with a camera and a curiosity that would go on to define his career, the Baltimore-raised photographer spent a transformative spring semester in Nottingham — and came home with images that still resonate today.

The trip came about through an unlikely academic connection. Dean's tutor at the Maryland Institute College of Art had a friend teaching at Nottingham Trent University, and together they established a small exchange programme. There were no formal classes to attend. It was just Dean, his camera, and an entire English city waiting to be explored.

## Life in a Victorian Terrace

Dean settled into the third floor of a Victorian house, living with a young family who welcomed him as one of their own. He shared dinners with them, celebrated the first birthday of their baby boy, and even helped make marmalade — carefully extracting pectin from the pips. It was, by any measure, full immersion.

"I was really embedded with this family," he recalls, using a word that feels entirely apt for the depth of connection he formed during those months.

## A City in Transition

When he wasn't at home, Dean was out walking — through the streets, past construction sites, and most frequently through Nottingham's oldest public park, the Arboretum. The city in 1976 was in the midst of significant change. Victorian architecture was being demolished wholesale to make room for modern council housing, and the industries that had long sustained the region — lace, bicycles, manufacturing — were beginning to decline.

For Dean, the scene carried a familiar weight. Back home in Baltimore, the steel industry that had powered the city for generations was also faltering. Bethlehem Steel hadn't yet shuttered, but the warning signs were unmistakable. "Both are working-class towns," he reflects. "It wasn't that different from Baltimore."

What struck him most was the way local children had claimed the demolition sites as their own — scrambling through broken windows and exploring abandoned buildings with a freedom that was as thrilling as it was dangerous.

## The Shot That Defined a Career

It was in the Arboretum that Dean first encountered Joe — a regular walker he would come to know well over the course of his stay. The photograph that would later be named his best was taken the day they may have first met. Joe is accompanied by his young granddaughter and his dog, Becky.

"The dog really makes this picture," Dean says plainly. And he's right. While Joe and his granddaughter anchor the frame with quiet dignity, it's Becky who injects an unmistakable sense of life and personality into the scene. Dean captured other images of Joe that day, but none carried the same magnetic pull.

The little girl's name was never learned — she wasn't always with her grandfather — but Joe became a familiar and welcome presence. The two men bonded over a shared love of music, chatting easily across the cultural divide that might have separated them.

## Seeing England Through Fresh Eyes

Before arriving, Dean's mental image of England had been shaped largely by pop culture — most memorably by Roger Miller's cheerful 1965 song *England Swings*, with its bobbies on bicycles and rosy-cheeked children. The reality he found was both more complex and more compelling.

"To me, this picture now seems very English," he says of the Arboretum photograph. There is something in its mood — measured, understated, tinged with both warmth and quiet melancholy — that feels distinctly of its place and time.

Being a stranger in the city turned out to be an unexpected advantage. Alone and unhurried, Dean found that people were naturally drawn to him, and he to them. He learned how to approach strangers, build rapport quickly, and earn the trust required to ask for a photograph. It was a skill that would serve him throughout his entire career.

## Serendipity as a Professional Tool

That same openness to chance encounters led to remarkable moments far beyond Nottingham. In Istanbul, a casual conversation with a rug dealer whose cousin happened to be the imam at the Blue Mosque earned Dean rare access to the minaret — a story he still tells with undisguised delight.

"Serendipity has played a huge role in my career," he says. It shows.

## John Dean: A Photographer's Journey

Born in New York City in 1955, Dean went on to build a distinguished career behind the lens. One of his proudest professional moments came in the 1980s, when he received his first major assignment from the Walters Art Museum — travelling to Istanbul to photograph the magnificent Hagia Sophia.

His advice to aspiring photographers is characteristically thoughtful: *"Don't take your vision for granted. There is something unique in your point of view. Work on what satisfies your creativity, and share it."*

Decades on, a dog named Becky, a park in Nottingham, and a chance encounter between a young American and an Englishman who both loved music remain proof that the best photographs are rarely planned.

Photographer John Dean looks back at his most iconic 1976 image taken in Nottingham — a candid portrait made unforgettable by a dog named Becky.

John Dean's Best Photo: Becky the Dog Steals the Show

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How a Dog Named Becky Made History in John Dean's Most Memorable Photograph

## Scientists Discover Hedgehogs Hear Ultrasound — And It Could Save Their Lives

A groundbreaking study has revealed that hedgehogs possess the ability to hear ultrasonic frequencies far beyond the range of human hearing, opening the door to a potentially life-saving technology that could keep these beloved mammals safely away from roads and garden machinery.

### The Road Traffic Crisis Facing Hedgehogs

Hedgehog populations across Europe have suffered a sharp and troubling decline over recent decades. A significant contributing factor is road traffic — with estimates suggesting that vehicles are responsible for killing as many as one in every three hedgehogs. Finding an effective, non-invasive deterrent has become a conservation priority, and this new research may finally offer a practical solution.

### How the Study Was Conducted

Researchers from the University of Oxford, working alongside colleagues based in Denmark, tested the auditory capabilities of 20 hedgehogs that had been rehabilitated at Danish wildlife rescue centres. The team measured auditory brainstem responses by attaching small electrodes to the animals, which captured electrical activity passing between the inner ear and the brain as bursts of sound were played through a loudspeaker.

Published in the journal *Biology Letters*, the findings confirmed that hedgehog brainstems responded to sounds spanning a frequency range of 4 to 85kHz. This demonstrates a clear capacity to perceive ultrasound — defined as frequencies above 20kHz. To put this in perspective, humans can hear up to 20kHz, while dogs are capable of detecting sounds up to approximately 45kHz.

### Unique Ear Anatomy Unlocked

The research team went a step further by conducting high-resolution micro-CT scans of a hedgehog's ear to construct a detailed, interactive 3D anatomical model. This revealed previously undocumented structural features that help explain the animal's impressive hearing range.

The scans showed that hedgehogs have exceptionally small, dense bones in the middle ear, along with a partially fused connection between the eardrum and the first of these bones. This structural arrangement stiffens the bone chain, making it highly efficient at transmitting high-pitched sound — a characteristic typically associated with echolocating bats and other mammals that rely on ultrasound to navigate and hunt.

### A New Era of Hedgehog-Safe Technology

Armed with this knowledge, scientists believe it is now feasible to engineer devices that emit ultrasonic signals capable of deterring hedgehogs from hazardous environments. Potential applications include ultrasound repellers fitted to cars, as well as garden equipment such as lawn mowers and strimmers — all of which pose a serious risk to hedgehogs that often shelter in grass or roadside vegetation.

Importantly, because hedgehogs detect frequencies significantly higher than those audible to dogs, it should be possible to design repellers that do not disturb or distress household pets.

### What Comes Next

Dr. Sophie Lund Rasmussen, the study's lead author and an assistant professor at the Wildlife Conservation Research Unit at both the University of Oxford and the University of Copenhagen, outlined the team's ambitions going forward.

"Having discovered that hedgehogs can hear in ultrasound, the next stage will be to find collaborators within the car industry to fund and design sound repellents for cars," she said. "If our future research shows that it proves possible to design an effective device to keep hedgehogs away from cars, this could have a significant impact in reducing the threat of road traffic to the declining European hedgehog."

With hedgehog numbers continuing to fall, the development of ultrasound-based deterrent technology could represent one of the most practical and scalable conservation tools to emerge in years.

New research reveals hedgehogs can hear ultrasonic frequencies, raising hopes that repeller devices could dramatically reduce hedgehog road deaths across Europe

Ultrasound Repellers Could Protect Hedgehogs From Roads

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Could Ultrasound Technology Save Hedgehogs From Deadly Roads?

## Pet Flea Treatment Chemicals Detected at Dangerous Levels in UK Waterways

Researchers have uncovered compelling new evidence that chemical compounds found in common pet flea treatments are heavily contaminating rivers throughout Wales, posing a serious threat to aquatic life and freshwater ecosystems.

A major three-year scientific study identified the pesticides imidacloprid and fipronil — both commonly used in spot-on flea treatments — in more than three-quarters of river water samples taken across nine Welsh waterways. Alarmingly, concentrations exceeded safe ecological thresholds in nearly half of all samples collected from urban locations.

## How the Chemicals Are Entering River Systems

Researchers from Cardiff University's Water Research Institute spent three years analysing 62 sampling points across Wales to trace the journey these pesticides take from household pets into natural waterways.

The study identified a clear "down the drain" pathway as the primary route of contamination. When pet owners wash their animals, clean bedding, or simply rinse their hands after applying spot-on treatments, chemical residues are carried through household drainage systems and ultimately discharged into rivers.

"What we think happens is that people applying spot-on treatments to dogs, cats, rabbits or ferrets then either wash their animal in the shower, wash their animal's bedding, or wash their hands," explained Professor Steve Ormerod, who led the research. "Through those down-the-drain routes, the chemicals reach small urban streams in particular."

The problem is compounded by an estimated 500,000 properties across the UK believed to have misconnected sewers — where domestic appliances or bathrooms are incorrectly plumbed into surface water drains rather than foul sewers. Discharges from wastewater treatment plants further add to the chemical load entering river systems.

To confirm this drainage pathway, researchers tracked caffeine alongside the flea treatment chemicals, making this the first study to scientifically establish how the pesticides travel from homes into waterways — ruling out the simpler explanation of dogs swimming directly in rivers and lakes.

## Devastating Impact on River Wildlife

The findings paint a stark picture of ecological damage. In Roath Brook, a small waterway running through Cardiff, chemical concentrations reached up to 45 times above safe levels — the highest recorded across all study sites.

"It was quite staggering to see these chemicals in concentrations that are ecologically significant and toxic enough to start harming river wildlife," said Molly Hadley of Cardiff University's Water Research Institute.

The consequences for freshwater invertebrates have been severe. Researchers documented a 90% decline in certain mayfly and caddisfly species at affected sites, along with a 30% reduction in two additional mayfly species. Since aquatic insects form the foundation of river food chains, scientists warn the broader ecological fallout could be substantial.

"Imidacloprid and fipronil are universal pesticides — if you start introducing those into river environments, you risk triggering the collapse of entire ecosystems because invertebrates underpin everything within them," Hadley cautioned.

Both chemicals are already banned for outdoor agricultural use in the UK due to their environmental impact, yet they remain freely available and widely used in domestic pet care products. More than 3.5 million doses of spot-on flea treatments are sold annually across the UK.

## Vets Shift to Risk-Based Approach

In response to mounting environmental concerns, the British Veterinary Association (BVA) has revised its guidance on the routine use of spot-on flea treatments. Where vets previously recommended year-round preventative application, they are now advocating for a more tailored, needs-based approach.

Dr Gwen Rees, junior vice president of the BVA in Wales, described flea treatment use as "something vets are thinking about a lot" at present.

"Each animal is going to have different circumstances and face a different risk of picking up fleas — it depends on the weather, whether your cat goes outside, and so on," she said. Consulting a vet can help owners determine whether treatment is genuinely necessary or whether alternative, more environmentally responsible options are available.

## Calls for Broader Action

Natural Resources Wales (NRW) acknowledged the research, stating the findings would directly support its ongoing work to monitor river health and tackle pollution sources. Welsh Water confirmed the contamination does not affect drinking water quality.

The Welsh study builds on a growing body of evidence emerging from rivers across England, and follows the publication in 2025 of a UK-wide strategy aimed at better understanding and addressing chemical contamination from pet treatments.

For pet owners, the key takeaway is straightforward: speaking with a vet before routinely applying flea treatments could make a meaningful difference — not just for the health of individual animals, but for the health of the rivers and wildlife communities we all share.

Scientists warn pet flea treatment chemicals are contaminating Welsh rivers at dangerous levels, harming aquatic wildlife and disrupting freshwater ecosystems.

Pet Flea Chemicals Found at Toxic Levels in UK Rivers

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Pet Flea Treatments Are Poisoning UK Rivers at Alarming Rates, Scientists Warn

## Bristol Water Embraces Ancient Hedge Laying to Restore Wildlife Habitats

In a remarkable blend of historical craftsmanship and modern conservation, Bristol Water has launched an ambitious biodiversity initiative at Blagdon Lake — a 440-acre reservoir and trout fishery nestled within the Mendip Hills of Somerset. The project draws on the centuries-old practice of hedge laying to restore and enrich the natural ecosystems surrounding this ecologically significant site.

### What Is Hedge Laying and Why Does It Matter?

Hedge laying is a traditional rural craft that involves carefully trimming the base stems of hedgerow plants and repositioning them horizontally along the hedgerow line. Far from simply being a decorative practice, this technique serves a deeply functional ecological purpose. By allowing sunlight to penetrate the lower sections of hedgerows, it encourages thick, upward regrowth — creating dense, layered habitats that offer vital shelter and nesting opportunities for a wide range of species.

In contrast, conventional hedge maintenance, which often relies on heavy mechanical cutting equipment, frequently strips hedgerows of their density, leaving behind sparse, unstructured growth that offers little protection or habitat value for local wildlife.

### A Site of Special Scientific Interest Gets a New Lease of Life

Blagdon Lake holds the designation of a Site of Special Scientific Interest (SSSI), making the careful management of its surrounding landscape a matter of genuine national importance. Bristol Water's decision to adopt hedge laying as part of its land stewardship strategy reflects a growing recognition that sustainable, nature-friendly practices must take precedence over convenience.

To date, approximately 1,800 metres of hedgerow have been carefully laid by the specialist team. However, work will be paused during the bird nesting season to ensure that no disturbance is caused to nesting species or other vulnerable wildlife — a thoughtful concession that underscores the project's commitment to responsible conservation.

### The Expert Behind the Initiative

Leading the hedge laying team is Mike Reed, a seasoned specialist in the craft. Reed has spoken passionately about the urgency of the project, highlighting the precarious state of many familiar British species.

*"So many of our farmland and countryside birds are endangered, as are hedgehogs, so creating these spaces for them to live and nest in is more important than ever,"* he explained.

Reed also expressed pride in the cultural dimension of the work, noting that hedge laying carries a strong local tradition and that he relishes the opportunity to pass the skill on to a new generation of practitioners through this collaborative project.

### A Two-Year Transformation in the Making

The full project is expected to span two years, during which time ecologists and conservationists anticipate a meaningful return of wildlife to the area. The revitalised hedgerows are expected to provide critical winter cover for birds, hedgehogs, and insects — species that have seen significant population pressures in recent decades due to habitat loss.

Simon Hughes, Treescape Officer at Bristol Water, expressed enthusiasm for what lies ahead: *"It won't be long before we will start to see a complete transformation in the hedgerows, and it's exciting for all of us at Bristol Water to be a part of creating this significant and important change."*

### A Model for Conservation-Led Land Management

This initiative signals a broader shift in how water companies and land managers might approach their environmental responsibilities. By investing in proven, traditional methods rather than relying solely on modern machinery, Bristol Water is setting a compelling example of how heritage techniques can deliver powerful, lasting results for both biodiversity and community wellbeing.

As pressure on British wildlife continues to mount, projects like this offer a hopeful reminder that sometimes, the most effective solutions are those that have been quietly perfected over generations.

Bristol Water uses centuries-old hedge laying techniques to restore wildlife habitats at Blagdon Lake SSSI in Somerset, protecting birds, hedgehogs and insects.

Ancient Hedge Laying Boosts Biodiversity at Blagdon Lake

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Reviving an Ancient Craft: Hedge Laying Transforms Biodiversity at Blagdon Lake

## Nature's Most Dedicated Travelers Take Flight

Each year, as winter loosens its grip and the days grow longer, something remarkable happens across North American skies. Geese — honking loudly and gliding in their signature formations — begin their annual pilgrimage northward, covering thousands of miles in one of nature's most impressive seasonal spectacles.

But what actually drives these birds to undertake such an ambitious journey, and how do they manage to pull it off successfully year after year?

## Why Geese Leave Their Winter Homes

At its core, goose migration is about one thing: food. According to Mitch Weegman, an avian ecologist and professor at the University of Saskatchewan in Canada, geese are essentially forced out of their winter habitats by harsh environmental conditions.

"Because it's cold, sometimes ice prevents access to drinking water for these birds, and snow is preventing access to food," Weegman explained. "So they're getting kicked out of these places."

Staying put year-round isn't a practical option either. Any given ecosystem can only sustain a limited number of species competing for the same resources, making the seasonal move both a necessity and a survival strategy.

Geese recognize the signal to head north when temperatures rise, daylight hours increase, snow begins to melt, and fresh vegetation starts emerging from the ground.

"They are following the green wave, as we call it," said Andrea Kölzsch, an assistant professor of ecology at Radboud University in the Netherlands.

## The Migration Timeline and Major Flight Routes

The northward migration typically begins in late February and continues through May. Across North America, migrating geese travel along four established corridors known as flyways:

- **The Pacific Flyway** — stretching between Alaska and California
- **The Central Flyway** — running from western and northern Canada down to Arizona and Texas
- **The Mississippi Flyway** — connecting northern Canada to Louisiana
- **The Atlantic Flyway** — spanning from eastern Canada all the way to Florida

## Fueling Up for the Long Haul

Before departing, geese spend considerable time eating — and strategically so. Their pre-migration diet consists heavily of corn, beans, and wheat, which helps them increase fat and protein reserves to sustain energy over long distances.

However, there is a careful balancing act involved. Overloading on food can slow the birds down significantly, so geese must strike the right nutritional balance before taking off, Kölzsch noted.

## The Famous V-Formation Explained

Perhaps the most recognizable feature of migrating geese is their aerodynamic V-shaped flight formation. While visually striking, this pattern likely serves a highly practical aerodynamic purpose.

"The bird in front flies, and the one flying behind it can profit from the air currents that the wings of the first bird produce," Kölzsch explained.

Leadership within the formation isn't fixed. Geese regularly rotate the lead position, distributing the physical demand of flying at the front among multiple birds. This rotation happens more frequently when a bird is unwell or when challenging weather conditions arise.

Communication plays a constant role throughout the journey. The persistent honking heard during migration is actually an ongoing exchange of information and decision-making among the flock, helping coordinate movement and leadership changes.

## Multi-Generational Flocks and Family Bonds

Migrating flocks are far from random groups of strangers. They typically consist of multiple generations — parents, offspring, siblings, and what Weegman describes as "loose family associates" — all traveling together.

The journey's duration varies considerably by species and individual. Faster birds may reach their destination within a few days, while most geese require several weeks or even months to complete the trip. Some species, such as snow geese and Ross's geese, make frequent rest stops along the way. Others, including black brant and Atlantic brant geese, are capable of flying up to 1,000 miles without landing.

## Climate Change Disrupts Migration Patterns

During rest stops, geese replenish their energy reserves and recuperate before continuing north. However, increasingly severe and frequent storms driven by climate change are compressing these recovery windows, forcing geese to eat and move on more quickly than they otherwise would.

## Not All Geese Migrate Anymore

Interestingly, migration is no longer universal among geese. Over the past three to four decades, Canada geese have successfully adapted to live year-round in regions where they once only spent warmer months. Their larger size and notably assertive personalities give them a competitive edge over other species when resources are contested.

"You can imagine how they win these interactions with foxes, coyotes, and other birds," Weegman said. "They're serious competitors."

## Arriving Home — With a Partner for Life

By the time migrating geese finally reach their summer destinations, many have already accomplished something beyond the physical journey. They've found a breeding partner along the way — and once that bond is formed, it lasts a lifetime.

It's a fitting conclusion to one of nature's most extraordinary annual journeys: thousands of miles traveled, countless challenges overcome, and a lifelong partnership secured along the way.

Discover how and why geese migrate thousands of miles each spring, including their V-formation secrets, flyway routes, and incredible survival strategies.

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