Animals

Monarch butterfly caterpillars will headbutt each other when food is scarce, according to new research.

Monarch Caterpillars Butt Heads Over Milkweed

A new study finds the colorful butterfly larvae will aggressively lunge at each other in pursuit of an extra mouthful of food

A new report finds platypus numbers are declining in Australia, prompting the authors of the report to call for the species to be listed as endangered.

Platypuses Lost 22% of Their Habitat Over Last 30 Years

The startling finding comes in a report that documents the iconic Australian animal’s decline and recommends increased legal protections

Writer and photographer Paul Koudounaris' new book, A Cat's Tale, finds his pet kitty, Baba, channeling famous and little-known felines from history.

A History of Felines, as Narrated and Illustrated by a Cat

Baba the cat is both storyteller and photographic model in what is perhaps the most unique cat history book ever published

A new study finds beaver-eating wolves alter the landscape in Voyageurs National Park in Minnesota by changing the number and distribution of beaver ponds.

Minnesota Wolves Are Eating Beavers and Reshaping Wetlands

A new study finds that when a wolf kills a beaver its abandoned dam falls apart and goes unoccupied for more than a year

Black-and-white tegus are more resistant to cold than most reptiles because they can raise their body temperature about 50 degrees Fahrenheit above that of the environment

These Four-Foot Lizards Will Eat Anything—and They're Invading the Southeastern U.S.

Tegus first appeared in the wild of southern Florida a decade ago, but now they're in Georgia and South Carolina, too

Bee species are more diverse in dry regions where pollen is abundant.

Scientists Create a Buzz With the First Ever Global Map of Bee Species

Most of the insects avoid the tropics and choose treeless environments in arid parts of the world

Border collie Chaser had the largest tested word memory of any animal (other than a human).

The Most Famous Dogs of Science

These iconic canines have helped scientists make key discoveries, from archeological finds to cures for disease

Echidnas have a four-headed penis, though only two heads are put to use at a time.

Nine of the Weirdest Penises in the Animal Kingdom

A short list of some of nature’s most curious phalluses, from the echidna’s four-headed unit to the dolphin’s prehensile member

Winston, a 100-pound longhaired German shepherd, is a veteran participant in a series of research projects at Yale.

The New Science of Our Ancient Bond With Dogs

A growing number of researchers are hot on the trail of a surprisingly profound question: What makes dogs such good companions?

A view inside the Asian giant hornet nest that Washington State entomologists destroyed last month.

Asian Giant Hornet Nest May Have Contained 200 Queens

Officials say they’ve counted roughly 500 hornets in various stages of development after examining a nest they found and destroyed last month

Pandamonium

Revisit all of the baby panda cub's cutest moments and learn more about his species

A wolf-like robot dubbed "Monster Wolf" photographed in 2017. An updated model was recently installed in the town of Takikawa on Japan's northern island of Hokkaido. The robot's motion sensor triggers flashing red LED eyes and a selection of 60 sounds aimed to frighten animals back into the wild.

Robotic 'Monster Wolf' Protects Japanese Town From Bears

No bear interactions have been recorded in the town since the robots' installation in September

Camels stay cool through a combination of sweat and insulating fur.

Why This New Technology Inspired by Camel Fur Is Super Cool

A two-layered material that mimics the animals’ sweat glands and insulating fur chills surfaces 400 percent longer than traditional methods

Two banded mongoose groups face off.

Warmongering Female Mongooses Lead Their Groups Into Battle to Mate With the Enemy

New research finds females of this species engineer conflicts with rival groups to gain sexual access to males outside their group and combat inbreeding

The fin of a great white shark being tagged by researchers off the coast of Southern California.

Record Number of Great Whites Tagged in Southern California

Researchers working in Southern California tagged 38 sharks this year, more than triple last year’s total

Scientists caught a juvenile female vaquita in October of 2017 and released her after she showed signs of stress.

Vaquita Genome Offers Hope for Species' Survival

A new study suggests the marine mammal can recover naturally if illegal fishing is eliminated

A round goby (Neogobius melanostomus) in a plastic pipe in the lab.

Some Fish Fins Are as Sensitive as a Primate's Fingertips

Experiments reveal fish fins aren't just for getting around. They could have implications for underwater robotics

The first gray wolves reintroduced to the United States were brought in from Canada in the 1990s.

Colorado Votes to Reintroduce Wolves to the Southern Rocky Mountains

In a historic decision, Colorado voters led the way to bring back the apex predator

The U.S., the Netherlands, Denmark and Spain have all reported coronavirus outbreaks on mink farms.

Denmark Plans to Kill 15 Million Mink to Prevent Spread of Mutated Coronavirus on Fur Farms

At least 12 Danish people have been infected with a SARS-CoV-2 mutation linked to the ferret-like animals

An extinct group of lizardlike amphibians known as albanerpetontids boasts the earliest example of a slingshot-style tongue. This CT scan shows an exquisitely preserved 99-million-year-old albanerpetontid skull with its long, specialized tongue.

Scientists Find the World's Oldest Chameleon-Like Tongue Preserved in Amber

A skull and soft tissue perfectly kept in resin show that an ancient amphibian had a tongue that was both fast and extendable

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