The first ever photo of a live Sumatran muntjac is also the first record of the species in 80 years and establishes the muntjac as a "new" species, exerts say.

The discovery at a Virginia aquarium marks the second time scientists have used DNA testing to verify what would have been a "virgin birth"—if the pups hadn't died.

African pirates threatened Friday to blow up the arms-laden Ukrainian ship they've hijacked--the latest salvo in a crisis that's boosting shipping costs and cutting off aid to millions of Somalis.

A controversial fossil find suggests that animals were walking around the planet about 570 million years ago—30 million years earlier than previously believed.

Bird species worldwide are in decline—a sign that the planet's health is also faltering, according to a new report.

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.

The Western Wall, the Queen Elizabeth 2, Iceland's financial meltdown, and more are featured in our picks of the week's news photos.

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.

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.