The feisty marsupial's new status comes in response to its decline from a mysterious cancer, the Tasmanian state government announced recently.

After years of hiding in pollution, fish in a Washington State lake may have "evolved in reverse" once the water cleared up, a study finds.

Tens of millions of the starfish-like animals occupy a shallow undersea mountain range, say scientists conducting a lengthy survey of ocean life.

The captive animal's instinct to return to the Wolong National Nature Reserve in central China raises hope that two pandas still missing will be found, an expert says.

Seen in cell-phone camera footage, handlers at the Wolong National Nature Reserve in China evacuated more than a dozen panda cubs just after the massive May 12 earthquake.

Mantis shrimp see 11 or 12 primary colors, as opposed to our humble 3. Now a new study says they can see rare forms of polarization too.

The tree-dwelling creatures were put on a specially built treadmill of ropes and pulleys as part of new research into how much energy the animals expend.

More than 400 racehorses—many of them in perfect health—are "destroyed" each year in the U.S. territory, where keeping losing or injured horses can be costly. Warning: graphic imagery.

Short-finned pilot whales have been observed making high-speed chases after prey at great depths, the first time such behavior has been seen in deep-diving mammals.

See "Fusion Man" fly via a jet-powered wing on his back, a giant beetle escape a smuggler, volcanic ash falling eerily, and more.

A tourist visiting a reserve during the massive earthquake in China says pandas seemed to sense something was wrong before the quake struck.

The U.S. has listed the polar bear as threatened, sparking a global warming debate and garnering mixed reactions from environmentalists.

Captive pandas were observed acting strangely before Monday's devastating quake, mirroring previous accounts of animals reacting before disaster strikes.

Using a rope treadmill, researchers have revealed that tiny species use no more energy climbing vertically than they do walking on the ground, a find that bolsters theories about the earliest primates.

Scientists have unlocked the secret of how shorebirds called phalaropes use fluid dynamics to direct water up their long, slender beaks and into their mouths.