Shark Prepared for "Virgin Birth," DNA Shows
Paternity tests found no evidence of a father. It was the second time scientists used DNA testing to verify what would have been a "virgin birth"—if the animals hadn't died. 查看全文
Fisheries Collapse, Warming Are "Big Trouble" for Birds
Bird species worldwide are in decline—a sign that the planets health is also faltering, according to a new report. 查看全文
PHOTOS: 100s of New Marine Species Found Off Tasmania
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. 查看全文
VIDEO: Alaska Brown Bear Trapped
National Geographic researchers trap an Alaskan brown bear for research, and the bear is not at all happy. 查看全文
VIDEO: Humpbacks Migrate to Mexico
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. 查看全文
Biggest Dinosaurs Grew Huge by Not Chewing Their Food
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. 查看全文
Nearly 300 New Marine Species Found Near Australia
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. 查看全文
ANIMAL PHOTOS WEEKLY: Penguin March, Tree Frog, More
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. 查看全文
VIDEO: Penguins Sent "Home" to Argentina
Several penguins that mysteriously washed onto the beaches of Brazil this year have been nursed back to health and sent "home" to Argentine Patagonia. 查看全文
VIDEO: Chicken Feathers to Build Houses
A Philippine scientist has developed wallboard using chicken feathers. He says it could replace traditional woodchip wallboard used in construction. 查看全文
Deepest-Ever Fish Caught Alive on Camera
Life thrives at nearly five miles under the sea, researchers found. A group of snailfish are the deepest species ever seen alive. 查看全文
VIDEO: Rhino "Befriends" Ranger
An orphaned white rhino has bonded with a Kenya park ranger, who looks after the animal to protect him from poachers and predators. 查看全文
Heavy Metal-Eating "Superworms" Unearthed in U.K.
Newly evolved earthworms found at old mining sites eat toxic waste and could help cleanse polluted industrial land. 查看全文
TRAVEL/CULTURE PHOTOS WEEKLY: Dog Race, Festivals, More
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. 查看全文
VIDEO: New Endangered Species List
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. 查看全文
PHOTOS: Parachute Spider, New Shrew on 2008 "Red List"
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. 查看全文
One in Four Mammals at Risk of Extinction
A five-year review done by experts from 130 countries paints a grim picture for the world's 5,487 known mammal species. 查看全文
Eagles "Cannibalizing" Other Birds as Otters Disappear
Some bald eagles are turning to seabirds as their main food, and in a roundabout way, the new diet is traceable to a 1990s otter collapse, researchers say. 查看全文
Extinction Crisis Worsens; "Dow Jones" Approach Touted
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. 查看全文
Male Songbirds Enjoy Serenading Females
Singing to the fairer sex lights up reward centers in zebra finches' brains, a new study shows. The experience is not unlike a drug high. 查看全文
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