Newly discovered fossils of the oldest known swimming turtles show the reptiles first took to water some 165 million years ago, researchers say.

A tree-devouring Asian beetle is encroaching on New England's forests, beloved for their brilliant autumn colors and maple syrup, experts say.

The first genetic blueprint from an extinct animal could reveal what separates the fuzzy giants from elephants—and may open the door to a "resurrection."

Fossils suggest that much of Alaska was formed from a patchwork of small land chunks that collected against North America between 251 million and 60 million years ago.

Less than ten months old, Mapima was being mistreated by Congolese soldiers before she was rescued last week, experts say.

The discovery of 420-million-year-old snail fossils adds to a growing body of evidence about Alaska's long-ago links to Eurasia

Africa's largest undercover investigation of wildlife crime may lead police to smugglers, Kenyan officials said this week. But conservationists claim such stings are futile.

Watch as a destructive locust swarm moves across farmland in drought-ridden New South Wales state, prompting officials to prepare an airborne assault.

It may seem disconcerting to see volunteers "steal" eggs as they're laid by green sea turtles in Pakistan. But it's all for conservation.

Thousands of wild horses in U.S. care will not be put down to give the government another year to explore possible solutions and "let cooler heads prevail," U.S. officials said Monday.

Seized during a Malaysian raid, the owls shocked wildlife-trade monitors. The sizes of this and another November seizure point to organized crime, experts say.

Greater sac-winged bats turn up the bass to intimidate rivals and attract females, a new study shows. With audio.

Using their natural sonar, some killer whales seem able to detect chinook salmon and will seek them out even when other fish are more plentiful, a new study says.

A whaling ship is seen departing Japan Monday in video provided by Greenpeace, which claims the ship is on its way to Antarctic waters to hunt whales. Warning: Video contains graphic imagery.

Three Sumatran tiger cubs made their public debut Monday at an Australian zoo. With fewer than about 500 wild Sumatran tigers left, the cubs are more than just cute.