Wildlife

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UPDATE: Sloth Bear Cub Has a New Name

The National Zoo's sloth bear cub is now called Hank

Canyon walls tower above river rafters in the cathedralesque Grand Canyon. Traveling by raft may be the most enjoyable and easiest way to explore the Colorado River, one of the most threatened rivers.

Exploring the World’s Most Imperiled Rivers

Agriculture, pollution and hydroelectric development threaten many great rivers. See them while they still flow, via raft, kayak, canoe—or bicycle

How many unborn brothers and sisters did this sand tiger shark devour to be here today?

Baby Sand Tiger Sharks Devour Their Siblings While Still in the Womb

This seemingly horrific reproduction strategy may be a way for females to better control which males sire her offspring

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Saving the Cao Vit Gibbon, the Second Rarest Ape in the World

Setting aside additional protected areas and creating forest corridors could help this Asian primate bounce back from just 110 individuals

Emperor penguins swimming

14 Fun Facts About Penguins

Which penguin swims the fastest? Do penguins have teeth? Why do penguins sneeze? How is penguin poop useful?

These dogs have hiked off-leash to the top of Handies Peak in Colorado. Sharing the great outdoors with our pets is a favorite pastime—but as a result of conflicts between dogs and wildlife, leash laws and dog bans have become commonplace.

Hiking with Your Dog This Summer May Be Harder Than You Think

If you've entertained ideas of boundless romping in the woods with your pet, you may be in for a serious letdown

Flamingos depend on plant-derived chemical compounds to color their feathers, legs and beaks.

For Some Species, You Really Are What You Eat

Flamingos, shrimp and many other animals use chemical compounds found in their diets to color their exteriors

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Which Primate Is the Most Likely Source of the Next Pandemic?

To help anticipate the next outbreak of an emerging infectious disease, scientists scrutinize our closest relatives in the animal kingdom

Lake Louise, one of the world’s most beautiful compositions of water, rock and ice, belongs to Canada. The small lake attracts throngs of tourists while serving as a stepping stone to surrounding wilderness areas of the Rocky Mountains.

From Sea to Shining Sea: Great Ways to Explore Canada

Here are six ways to experience the greatest scenery of America's neighbor to the north

ZnO Fall Flowers. Image by Audrey Forticaux, a graduate student in the Chemistry Department

Intriguing Science Art From the University of Wisconsin

From a fish's dyed nerves to vapor strewn across the planet, images submitted to a contest at the university offer new perspectives of the natural world

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10 Things We’ve Learned About the Earth Since Last Earth Day

Pigeon-eating catfish, Antarctic trash, and more: A list of surprising, alarming and exciting discoveries about our planet from the past year

The rare coealacanth’s genome is slowly evolving—and contrary to prior speculation, it probably isn’t the common ancestor of all land animals.

DNA Sequencing Reveals that Coelacanths Weren’t the Missing Link Between Sea and Land

The rare fish's genome is slowly evolving—and contrary to prior speculation, it probably isn't the common ancestor of all land animals

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Sequestration to Cause Closures, Secretary Clough Testifies

Gallery closings, fewer exhibitions and reduced educational offerings are some of the impacts he listed before the Committee on Oversight and Government Reform

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If You Watch Slow Loris Videos on YouTube, Are You Threatening the Species' Survival?

Never has been being so cute been so dangerous

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Where Have the Trees of Guam Gone?

Scientists are investigating whether the obliteration of the island's bird species is thinning the tree canopy and could alter the forests' structure

This adult male bedbug wants to suck your blood.

Bean Leaves Don’t Let the Bedbugs Bite by Using Tiny, Impaling Spikes

Researchers hope to design a new bedbug eradication method based upon a folk remedy of trapping the bloodsuckers as they creep

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Photos: Scenes From Life Under the Sea

Three decades in and photojournalist Brian Skerry is still getting acquainted with the ocean's many characters

Caught in the act by a motion-sensing infrared camera, Yachak, nicknamed by local researchers, feeds on a cow carcass--just one of the 250-plus livestock head the old male has killed in about three years.

What Should Be Done With Yachak, the Cattle-Killing Bear of the Andes

Conservationists and ranchers in Ecuador struggle to make peace while an elusive spectacled bear feasts on valuable livestock

A trident lined with shark teeth, used in the study.

19th Century Shark Tooth Weapons Reveal A Reef’s Missing Shark Species

Lashed to swords and spears from the Pacific's Gilbert Islands are teeth from two shark species that were never known to have swam in the area

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Why Geckos Don’t Slip Off Wet Jungle Leaves or Hotel Ceilings

A surface's ability to attract and repel water heavily influences the degree to which a gecko can cling overhead, new research shows

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