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Mammals

A grizzly bear walks along a road in Lake Louise, Alberta. 

To Reduce Human and Grizzly Bear Conflicts, Both Species Must Change Their Behavior

Rural Alaskan and Canadian communities are trying to get along with the large mammals

Humpback whales have poorer eyesight than previously thought, according to a new study.

Humpback Whales Can’t See as Well as Scientists Thought, and It Might Explain Why They Keep Getting Tangled in Fishing Gear

Despite having big eyes, the whales can’t make out details of objects more than a few body lengths away, according to a new study

A mother and baby whale spotted swimming near Kiama, New South Wales, Australia. 

Humpback Whales Give Birth Much Farther South Than Previously Thought, Study Finds

Researchers in Australia found records of humpback whale calves more than 900 miles farther south than expected

A howler monkey infant, only a few days old, clings to a subadult white-faced capuchin monkey as it uses tools.

Capuchin Monkeys Caught on Camera ‘Abducting’ Baby Howler Monkeys in a Strange Tradition Seen for the First Time

Scientists on Panama’s Jicarón Island were mystified by photos and videos of young male capuchins carrying howler monkeys on their backs for days at a time

The female elk was spotted grazing and lounging around Estes Park, Colorado.

‘1 Out of Every 100,000’: This Rare Piebald Elk Is Turning Heads in Colorado With Her Unusually Splotchy Fur

The female ungulate has white patches on her face and body, likely because of an uncommon genetic condition that affects pigmentation

A new study suggests chimpanzees don't just perform self-care—in some cases, they look out for each other.

Chimpanzees Perform First Aid on Each Other, Study Finds, and It May Shed Light on the Evolution of Human Health Care

Researchers describe cases of chimps tending to others’ wounds, as well as a chimp that freed another from a snare

Grizzly 399 (left) reigned as the "Queen of the Tetons" until her death in October 2024.

Male Offspring of Grizzly 399—the ‘World’s Most Famous Bear’—Killed by Vehicle in Grand Teton National Park

The 5-year-old boar known as Grizzly 1058 was part of a rare litter of four cubs born in 2020

Scientists analyzed more than 20 years of data on 164 wild mountain gorillas living in Volcanoes National Park in Rwanda.

For Mountain Gorillas, Being Social Comes With Both Benefits and Drawbacks, Study Suggests

A new analysis of wild gorillas in Rwanda indicates the effects of different social styles are dependent on context

A Yangtze finless porpoise appears to "smile" at the Baiji Dolphinarium at the Chinese Academy of Sciences.

Art Meets Science

Ancient Chinese Poems Reveal the Decline of a Critically Endangered Porpoise Over 1,400 Years

Researchers looked at poetry dating as far back as the Tang dynasty to find that the Yangtze finless porpoise’s range has decreased by 65 percent

Ronan the California sea lion sits in front of a pool at UC Santa Cruz’s Long Marine Laboratory.

This Sea Lion Can Headbang Better Than You—Watch Her Out-Perform Humans at Keeping a Beat

A new study of Ronan, a sea lion famous for her dancing skills, challenges the idea that only vocal learners can match a tempo

Eastern quolls went extinct on mainland Australia in 1963.

See Eastern Quolls Get Released on Mainland Australia in a New Bid to Re-establish the ‘Magic Little Animal’

Conservationists recently introduced 15 of the polka-dotted marsupials into a protected area of New South Wales

Human wounds take longer to heal than the wounds of other mammals, researchers find. That could be because we have fewer hair follicles, and stem cells in hair follicles help regrow skin after an injury.

Human Evolution Traded Fur for Sweat Glands—and Now, Our Wounds Take Longer to Heal Than Those of Other Mammals

Even compared to chimpanzees, one of our closest relatives, humans’ scrapes and cuts tend to stick around for more than twice as long, new research suggests

Two juvenile bonobos embrace in Lola Ya Bonobo Santuary in the Democratic Republic of the Congo. New research suggests female bonobos form coalitions to gain or maintain power in their societies.

Female Bonobos Assert Their Dominance Over Males by Banding Together, New Study Suggests

Bonobos, which are among our closest living relatives, live in rare societies where females tend to outrank males, even though males are larger and stronger. Scientists compiled decades of observations to explain why

Before she went missing on Kangaroo Island, Valerie slept in bed with her human parents and enjoyed spending time indoors.

Good News

Valerie the Miniature Dachshund Has Been Rescued After Surviving for 529 Days on a Rugged Australian Island

The eight-pound pup is now decompressing after her epic adventure in the wilderness, a feat rescuers say was “just incredible”

A newly developed A.I. model is based on 40 years of vocalizations from a community of Atlantic spotted dolphins.

Google Is Training a New A.I. Model to Decode Dolphin Chatter—and Potentially Talk Back

The company says its new model, called DolphinGemma, will be made open source this summer. Researchers are also trying to train dolphins to mimic made-up names for certain objects

For the first time known to scientists, a team has documented chimps sharing alcoholic fruit.

Watch Wild Chimpanzees Share Alcoholic Fruit, a Behavior Just Captured on Video for the First Time

Though the reason behind this action is unclear, researchers suggest socially consuming alcohol may have offered evolutionary benefits to a common ancestor of both humans and chimps

Elephants at the San Diego Zoo Safari Park huddled together, facing outward, in a behavior called an "alert circle" after an earthquake hit.

Watch These Elephants Form an ‘Alert Circle’ as an Earthquake Shakes San Diego, Protecting Their Young at the Center

Footage from the San Diego Zoo Safari Park shows the large mammals huddling together around the herd’s calves

A subset of more than 1,000 neurons, representing just a snapshot of the complexity mapped within a cubic millimeter of mouse brain tissue

In a World First, Researchers Mapped Part of a Mouse’s Brain in Incredible Detail. It’s a Leap Forward for Neuroscience

The 3D brain map includes more than 200,000 cells, 523 million synapses and over two miles of axons, representing the most detailed wiring diagram of a piece of mammal brain ever constructed

Kipi, the 4-year-old female reticulated giraffe, stands roughly 12 feet tall. Her calf is roughly 6 feet tall.

No One Knew This Giraffe Was Pregnant—Until She Suddenly Gave Birth to a Healthy Baby Girl

Kipi, a 4-year-old reticulated giraffe and first-time mother, had only been at the Maryland Zoo for a few months when she surprised caretakers with her pregnancy

Researchers investigated 12th- and 13th-century manuscripts from an abbey in France that were clad in furry outer covers.

Some ‘Hairy’ Medieval Books Were Covered in Sealskin, and Researchers Don’t Know Exactly Why

Historians were surprised when analyses revealed Catholic monks used pinniped hides for the protective outer layer on some manuscripts, rather than skins from the local boars and deer

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