A "hairy" crab, spiky sea stars, and a bright red shrimp are among the 274 new species found during a research survey of Australia's deep ocean.

National Geographic researchers trap an Alaskan brown bear for research, and the bear is not at all happy.

From November to April, part of the Northern Pacific humpback whale population migrates to the Mexico Pacific to mate or give birth. The species's future is brighter but still threatened.

The biggest land animals that ever lived grew huge and were an evolutionary success in part because they swallowed large quantities of food whole, new research suggests.

Scientists have found 274 new species of corals, starfish, sponges, shrimps, and crabs 1.2 miles (2 kilometers) beneath the surface of Australia's waters.

Hundreds of penguins march seaward, a European tree frog sits on a zoo keeper's finger, and more in our weekly roundup of animal photos.

Several penguins that mysteriously washed onto the beaches of Brazil this year have been nursed back to health and sent "home" to Argentine Patagonia.

A Philippine scientist has developed wallboard using chicken feathers. He says it could replace traditional woodchip wallboard used in construction.

Life thrives at nearly five miles under the sea, researchers found. A group of snailfish are the deepest species ever seen alive.

An orphaned white rhino has bonded with a Kenya park ranger, who looks after the animal to protect him from poachers and predators.

Newly evolved earthworms found at old mining sites eat toxic waste and could help cleanse polluted industrial land.

Hundreds of hot air balloons prepare for flight, firecrackers explode at a vegetarian festival in Phuket, and more in our weekly update of culture photos.

The African elephant, Cuban crocodile, and Asian fishing cat are among species elevated to more critical categories on the updated global Red List of Threatened Species.

Roughly 38 percent of the world's known species are near extinction, according to a comprehensive survey done to create the 2008 Red List of Threatened Species.

The 2008 Red List of Threatened Species details dismaying trends. A new "Dow Jones index" approach aims to stem the tide by tracking selected species like stocks.