To help save South Australia's rare black-footed wallaby, researchers are taking joeys from the wild and placing them in surrogate pouches, encouraging wild moms to trigger "backup" pregnancies. Video.

Some lizards get no respect. Even after finally being recognized by science, a new gecko species' middle name is still "misunderstood."

Nine new species that dine only on dead whales have been discovered, a new study says. And what the menu lacks in variety it makes up for in portion size—a single meal can last 20 years.

The six-foot-long, toothed animal, first touted as "completely new, scientifically speaking," is part of a little-understood group of deep-sea fish known since the 1840s, researchers say.

California tadpoles are developing into frogs with missing legs and eyes—deformities possibly caused by an alien parasite that usually attacks farmed fish, experts say.

Flying for years under the scientific radar, the new ghostshark species is among the world's oldest and—and oddest—fish.

For the first time, a giant squid has been caught alive—though not for long—in the Gulf of Mexico, U.S. officials say.

Drastic drought conditions are killing iconic African animals and adding to political and ethnic tensions, according to relief workers who say Kenya is on the verge of disaster.

UPDATE: A gelatinous fish found off Brazil's Bahia coast has been touted as a previously unknown species. But the six-foot-long, toothed oddity may be a known member of a group of mysterious bottom-dwellers known as jellynose fish, another expert says. Video.

Mexican Navy patrols are helping to protect endangered Golfina, or olive ridley, turtles as they begin laying eggs at "the most important beach for marine turtle nesting in the world." Video

Dozens of whales mysteriously come ashore in Argentina, one of the world's oldest synagogues is found in Israel, and protesters clash with water cannons in Germany in this week's best news photos.

Move over, T. rex, there's something leaner. A newfound dinosaur is nearly identical to the king of the Cretaceous—but a hundred times lighter and 40 million years older.

No heavier than a small man, Raptorex was Mini-Me to T. rex's dinosaur Dr. Evil. But in this case, the tiny gave rise to the titanic.

A single injection of specialized genes has cured color-blindness in monkeys, a new study says. The same procedure would have cured color-blind humans, one scientist believes.

Why does Hierakonpolis, ancient Egypt's earliest city, contain tombs for baboons, elephants, cows, dogs, and cats? Archaeologists are uncovering answers.