Wildlife

A chilly squirrel.

Do Animals Hate the Bitter Cold of Winter?

Animals can certainly feel the cold, and many species have developed unique ways of dealing with it

An illustration showing what Galagadon would have looked like in life, swimming along the river floor.

New Prehistoric Shark Species Discovered Alongside Sue the T. Rex

The teeth of <i>Galagadon nordquistae</i> were discovered in the rock that once surrounded the famous <i>T. rex</i> skeleton.

The species Orobates pabsti represents a group of animals that lived after the first animals to walk on land but before the evolution of modern lizards.

Scientists Used a Robot to Study How Prehistoric Lizards Walked

OroBOT, a robot version of an ancestor to the dinosaurs, is helping fill in some gaps in the evolution of walking

Fatu, born in 2000, is one of the world’s last two surviving northern white rhinos. In this 2013 photograph, she’s hanging out with southern white rhinos at Kenya’s Pejeta Nature Conservancy.

San Diego’s Frozen Zoo Offers Hope for Endangered Species Around the World

The largest animal cryobank in the world is a rich source of genetic knowledge that may one day be used to bring endangered species back from the brink

Researchers often depend on fishing communities to learn what life is like for sharks out in the deep ocean.

To Study Rare Sharks, Scientists Are Heading to Fish Markets

Marine biologists are combing fish markets around the world to study what comes up in the nets, and sometimes the catch is full of surprises

Cormac Hondros-McCarthy, Lauren Shum, Parth Sagdeo and Ted Zhu celebrate their successful top prize spot at the Make for the Planet Borneo hackathon in Kuching, Malaysia in June 2018.

This Lobster Trap Aims to Protect Endangered Whales — and Fishers’ Livelihoods

A team of engineers is designing a low-cost, lineless, self-surfacing lobster trap that would prevent right whale entanglement

A newly collared mule deer is released onto its winter range.

New Tracking Technology Reveals Hidden Animal Migration Routes

Using improved GPS collars, scientists are mapping more herd migration routes than ever before, a key to conservation efforts in the western United States

Kevin Lafferty emerges from the waters off Anacapa Island near Ventura, California, after spearing fish in March 2018. He’s advising a UCSB PhD student on research to determine if reef fish inside protected marine reserves have more or fewer parasites than depleted fish populations outside the reserve. It’s to test a pattern that has emerged in other studies: that parasites thrive with richness and abundance of marine life.

In Praise of Parasites

They worm into snails and infect the brains of fish. They’re also examples of sophisticated evolution and keys to ecosystem balance.

One of this issue's questions is about the starfish's namesake shape.

Why Are Starfish Shaped Like Stars and More Questions From Our Readers

You asked, we answered

Up to 1,000 octopus moms care for their brood.

The Top Ten Ocean Stories of 2018

From the most ancient animal known to a newly defined ocean zone, the world's watery places never cease to amaze

Illustration of an adult and juvenile ankylosaur.

Armored Dinosaurs Kept Cool With a Labyrinth of Nasal Canals

A fluid dynamics study suggests the large and intricate passages in ankylosaurs' skulls were a great way to cool off in the Cretaceous

1921 Christmas greetings slide by Arthur Earland

The Nerdiest Christmas Cards Ever May Be These Microscope Slides Composed of Shells

The unusual holiday exchange, which lasted decades during the early 20th-century, hints at the drama between the two colleagues

Although the asteroid strike that created Chicxulub crater in modern-day Mexico dramatically affected life on Earth, the fiery crash isn't the whole story of the fate of the dinosaurs.

We Still Don’t Know Why the Reign of the Dinosaurs Ended

The asteroid strike on the Yucatán Peninsula 66 million years ago is only part of the story

Signals from other workers can tell ants when and where to fan out and search for food.

Ant Colonies Retain Memories That Outlast the Lifespans of Individuals

An ant colony can thrive for decades, changing its behavior based on past events even as individual ants die off every year or so

The Best Places to See Reindeer Around the World

From Norway to Alaska, here's where to see members of Santa's herd in person

Ichthyosaurs (Greek for "fish lizard") were large marine reptiles that lived alongside the dinosaurs during most of the Mesozoic era.

Like Whales and Dolphins, Prehistoric 'Fish Lizards' Kept Warm With Blubber

A new analysis of a pristine ichthyosaur fossil reveals that the prehistoric marine reptile had a layer of insulating fatty tissue

A new exhibition featuring rare books from the Smithsonian Libraries examines the complex history and evolution of big game hunting.

The Complicated History of the Human and Elephant Relationship

With the new exhibition, “Game Change,” Smithsonian Libraries delves into 150 years of hunting and conservation

Baleen is the soft, hair-like structure on the upper mouth of whales, such as the humpback whale in this photo, which allows them to trap prey in their mouth.

Prehistoric Whale Jaw Bone Sheds Light on the Evolution of Baleen

Hidden in a museums’ collections for years, a fossil provides a link between past and present feeding mechanisms

If Light Can't Escape Black Holes, How Do We Get Photos of Them... and More Questions From Our Readers

You asked, we answered

A sea turtle swimming by bleached corals of the Great Barrier Reef near Heron Island off the east coast of Australia.

Coral Larvae Cryogenically Frozen and Thawed for the First Time

Warming oceans are killing the world’s reefs, but scientists may have found a way to help them get out of hot water—by putting corals into a deep freeze

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