Mammals

A bottlenose dolphin photographed in Honduras shows its teeth.

A Dolphin Keeps Biting People in Japan. Researchers Think It's Just Lonely

A series of dolphin attacks in Wakasa Bay is believed to be the doing of a lone male bottlenose dolphin looking for friends or a mate—but finding only humans

Hundreds of sea lions have inundated a beach in central California.

See Hundreds of Sea Lions Take Over a Popular California Beach

The pinnipeds are resting on San Carlos Beach as part of their annual northward journey from the Channel Islands, prompting officials to close it down

Columbian mammoths were larger and less hairy than woolly mammoths.

20,000-Year-Old Columbian Mammoth Bones Discovered in Texas

While fishing at an undisclosed lake, Sabrina Solomon slipped and fell—and came face to face with the remains

A still from a video captured by Vermont resident Gary Shattuck, featuring the lynx walking alongside a road in Rutland County, Vermont, on August 17.

Rare Endangered Lynx Spotted in Vermont for the First Time Since 2018

The Vermont Fish and Wildlife Department has only confirmed seven sightings of the wildcats since 2016

More than 10,000 Clovis points have been discovered in North America, but researchers still aren't sure how early humans used them.

How Did Ice Age Humans Kill Huge Animals Like Mammoths? Probably Not by Throwing Spears, Study Finds

New research theorizes that hunters used pikes planted in the ground—with their sharp tips pointing upward—to impale approaching wildlife using the creature's own weight and momentum

Archaeologists discovered stone tools at the site, though they dated to a few thousand years after the mastodon’s death. 

13,600-Year-Old Mastodon Skull Uncovered in Iowa

The hulking creature may have overlapped with Indigenous people

An ocelot rests on a rock in the Sonoran Desert, Arizona, in 2007. Only seven ocelots, including the one just spotted, have been seen in the state in the last two decades.

Rare Ocelot Caught on Camera in Arizona, the First Sighting in Its Area for 50 Years

Ocelots were federally listed as endangered in 1972, and their current U.S. population is thought to be fewer than 100 individuals

This specimen is the first complete tusk of its kind found in Mississippi.

Rare Seven-Foot Mammoth Tusk Unearthed in Mississippi Creek

The enormous fossil belonged to a Columbian mammoth, a larger relative of the woolly mammoth

An artist's impression of the shrew-like Krusatodon kirtlingtonensis, which a new study suggests lived long and matured slowly, in contrast to modern small mammals.

Two Rare Jurassic Skulls Could Help Unlock the Secrets of Mammals' Evolutionary Success

Fossils reveal a prehistoric, mouse-like creature matured slower and lived longer than similar mammals of today

A rhesus macaque on Cayo Santiago, which is less than a mile east of Puerto Rico. Rhesus macaques spend upwards of 20 percent of their time engaged in cooperative behaviors like grooming.

How Do Animals Change Their Social Habits as They Age?

In patterns that may sound familiar, long-term studies reveal what elderly deer, sheep and macaques are up to in their twilight years

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How to Sweat Like an Olympian

This summer, don’t be embarrassed by those pit stains or your drenched workout clothes. Our expert on the science of sweat says perspiration is what makes humans faster, higher and stronger

Two chimpanzees at the Budongo Conservation Field Station in Uganda

Chimpanzees Take Turns in Fast-Paced Conversations, Just Like Humans Do

A new study finds the average chimpanzee response time in gestured conversations is 120 milliseconds, which isn’t that far from the human average of 200 milliseconds

The remains of whales that sink to the ocean floor become biological oases. Since 1977, scientists had only identified about 50 such whale falls across the world’s oceans, but a recent effort uncovered a startling density of them off the coast of Los Angeles.

Why Have So Many Whale Remains Been Found on the Ocean Floor Near Los Angeles?

Scientists have discovered more whale falls there than in the rest of the world combined

DOC ranger Jim Fyfe and Māori ranger Tūmai Cassidy walk alongside a cetacean, thought to be a rare spade-toothed whale, being transported by Trevor King Earthmoving.

The World's Rarest Whale May Have Just Washed Ashore in New Zealand

No one has ever recorded a live sighting of the spade-toothed whale, but experts say the dolphin-like creature found earlier this month is "no doubt" a member of the elusive species

Baby beluga whales and adults alike spend the summer in the Churchill River.

Watch Chatty Beluga Families Migrate With These Stunning Live Cams in Canada

Polar Bears International and Explore.org are once again capturing video footage and audio recordings of the social marine mammals as tens of thousands congregate in the Churchill River this summer

Scientists believe the mammoth was so well-preserved because of the dry, cold climate in Siberia.

3D DNA Preserved for 52,000 Years in Freeze-Dried Woolly Mammoth Remains

For the first time, researchers have mapped ancient genetic material in unprecedented detail

Asteroid impacts and volcanism have led to mass extinctions on our planet.

Has Life on Earth Survived More Than Five Mass Extinctions?

Scientists aren’t just arguing whether humans are causing a sixth mass extinction event now, but whether many more occurred in the past

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The Wild Story of What Happened to Pablo Escobar’s Hungry, Hungry Hippos

Ever since the demise of the infamous drug kingpin, his pet hippos have flourished, wreaking havoc on the ecosystem and terrorizing local communities

Ranchers and landowners consider dingoes pests, while conservationists say they are vitally important to Australia's ecosystem.

Ancient DNA Unravels the Mysteries of the Dingo, Australia's Wild Dog

Researchers dove into thousands of years of evolutionary history, revealing new insights about the iconic, though sometimes vilified, canines

Winged Life Winner

View 11 Breathtaking Images From the BigPicture Photography Competition

This 2024 showcase of life on Earth shines a light on some of our planet's most amazing species and places

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