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.
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Bird species worldwide are in decline—a sign that the planets health is also faltering, according to a new report.
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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.
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National Geographic researchers trap an Alaskan brown bear for research, and the bear is not at all happy.
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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.
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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.
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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.
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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.
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Several penguins that mysteriously washed onto the beaches of Brazil this year have been nursed back to health and sent "home" to Argentine Patagonia.
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A Philippine scientist has developed wallboard using chicken feathers. He says it could replace traditional woodchip wallboard used in construction.
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Life thrives at nearly five miles under the sea, researchers found. A group of snailfish are the deepest species ever seen alive.
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An orphaned white rhino has bonded with a Kenya park ranger, who looks after the animal to protect him from poachers and predators.
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Newly evolved earthworms found at old mining sites eat toxic waste and could help cleanse polluted industrial land.
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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.
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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.
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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.
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A five-year review done by experts from 130 countries paints a grim picture for the world's 5,487 known mammal species.
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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.
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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.
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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.
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