Animals

Here an octopus—not Heidi—swims in a tank.

Heidi the Snoozing Octopus May Not Be Dreaming After All

A video of the octopus’ in-sleep color changes are fascinating, but it doesn’t tell us much

North America's Rarest Warbler Comes Off the Endangered List

Habitat restoration and invasive species trapping have helped Kirtland's recover in its central Michigan home

Let the battle of the bulge commence

Holly Cow! Fattest Bear of Them All Claims Coveted Title

For #FatBearWeek2019, the furever fabulous 435 Holly reigns triumphant

Coyotes are one of the most resourceful and resilient predators and play an important role in controlling populations of small mammals.

Connecting With Coyotes on the Prowl

Biologist Joe Guthrie embarks on a new study to track five adults in the Shenandoah Valley using GPS collars

Fur seal pups on Bogoslof Island.

On an Active Volcano, a Northern Fur Seal Population Is Booming

Scientists estimate that there were 36,000 pups on Bogoslof Island this year—up from around 28,000 in 2015

Photo shows seized pangolin scales and elephant ivory in Singapore this July

New Report Finds at Least One in Five Terrestrial Vertebrate Species Are Traded Globally

The research team also predicts increased trade going forward

Ming at Noah's Lost Ark, Inc., a non-profit exotic animal sanctuary in Ohio.

A Farewell to Ming, the Siberian-Bengal Tiger Who Spent Three Years in a Harlem Apartment

Antoine Yates, Ming’s owner, once said that the tiger was his ‘only friend, really’

Though the Iberian lynx seemed destined for extinction, a conservation effort in Spain and Portugal has helped the population stabilize.

How the Iberian Lynx Bounced Back From the Brink of Extinction

Two decades ago, fewer than 100 Iberian lynx remained, but thanks to captive breeding and habitat management, the population is recovering

Artists reconstruction of Phoebodus sharks.

This Ancient Shark Looked Like an Eel and Swallowed Its Prey Whole

Scans of a rare 360-million-year-old shark skeleton shows the beasts used hunting techniques similar to modern sharks and fish

Previously, researchers believed giraffes' spots grew darker with age

Color of Giraffes’ Spots Reflects Social Status, Not Age

New research suggests male giraffes with darker coloring are more solitary, dominant than lighter-hued counterparts

Mother walruses like this one on a waterfront near Svalbard, Norway, are very protective of their young.

An Angry Walrus Mother Derailed a Russian Naval Expedition

The hulking marine mammal was likely trying to protect her calves

Too cute to be nameless.

Help the Shedd Aquarium Name Its Rescued Otter Pups

The aquarium hopes the contest will help raise awareness about southern sea otters’ ongoing conservation needs

Scientists analyzed hundreds of bison and brown bear fossils collected in the field or held by major museums

Why Are Animals in Natural History Museums Overwhelmingly Male?

Researchers say the sex imbalance stems from factors including animal size, sex-specific behavior and human collecting preferences

Good luck, Tira! You've surely earned your spots.

Spotted in Kenya: A Baby Zebra With Polka Dots

Tira, as the foal has been named, appears to have a condition known as “pseudomelanism”—and it may threaten his survival

The word "teetotaler" dates back to the temperance movement that preceded Prohibition.

Where Does the Word 'Teetotaler' Come From? And More Questions From Our Readers

You've got questions, we've got experts

The Tiger Temple charged tourists to feed, take photos with captive felines

86 Big Cats Rescued From Thailand’s Tiger Temple Have Died in Government Custody

Although the government says inbreeding, stress contributed to the felines' demise, critics have also cited cramped conditions, inadequate facilities

Sketches of the salamanders.

New Giant Salamander Species Is the World's Largest Amphibian

A new study has revealed that Chinese giant salamander consists not of one species, but three

Rats Learned to Play Hide and Seek to Help Study the Brain

The animals squeaked and jumped for joy during the game, a sign that they enjoy play just as much as humans

Archaeologists found traces of a milk protein in seven prehistoric Britons' calcified dental plaque

Prehistoric Farmers' Teeth Show Humans Were Drinking Animal Milk 6,000 Years Ago

A new study suggests Neolithic Britons processed raw milk to reduce its lactose content

Massive 'Ice Dragon' Ruled the Skies Above Ancient Alberta

The newly described pterosaur with a wingspan over 30-feet was one of the largest flying creatures to ever exist

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