El Niño and high levels of greenhouse gases in the air are likely to make 2007 the hottest year ever recorded.

Relive the hunt for the "Arabian phoenix," which numbers fewer than 300 in the wild.

A pipeline being touted by Venezuelan leaders as an economic necessity has environmental groups warning of a "gigantic threat" to regional ecosystems and cultures.

Of the 72 Indian rhinoceroses introduced to a Nepali wildlife reserve, 49 have mysteriously vanished, park officials report.

Human activity has caused at least 200 earthquakes, including the temblor that devastated the town of Newcastle, Australia, new research suggests.

A U.S. food safety agency proposal to legalize sales of meat and milk from clones has reignited debate over the safety and ethics of animal cloning.

Slashed repeatedly by a giant propeller, the whale is the sixth known North Atlantic right whale fatality of 2006—and was one of only about 350 still in existence.

A massive "tongue" of ice believed to be 3,000 to 4,500 years old snapped off Ellesmere Island, yet another indicator of global warming, scientists say.

Hop aboard a canoe drifting down Florida's Ichetucknee River, and see the sparkling waters and rich array of animals that conservationists are fighting to protect.

Residents of a poor neighborhood in the commercial city of Lagos were burned alive as they tried to scrounge fuel from a pipeline tapped by thieves.

Supporters say legal sales of farmed tiger parts will make poaching less profitable, but the idea has many conservationists baring their teeth.

Strange specimens of natural glass found in the Egyptian desert are products of a meteorite slamming into Earth between 100,000 and 200,000 years ago, scientists say.

From a miniature fish to three new types of tree, the Southeast Asian island boasts a variety of creatures found within the past year alone, a WWF study concludes.

The little-known vaquita, of which only about 400 remain, may be the next marine mammal to disappear, researchers warn.

Liberating chimpanzees with soldiers at her side, performing surgeries in the wild, and demonizing ape-meat traders, Sheri Speede is helping change the way a nation looks at apes.