Join the world's fastest serpent—the deadly black mamba, whose venom can kill a human in just 15 minutes—as it zips through the African wilderness in search of its next meal.

This week: hurricane forecast downgraded, birds set migration record, elephants avoid going uphill, blond and brunette mammoths, and more.

Early primates developed keen eyesight to better detect and avoid increasingly dangerous snakes in a sort of evolutionary arms race, scientists say.

Join three species of serpent as they outsmart enemies with deadly looks, clever camouflage, and even a "second head."

Do elephants mourn? This new sequence of photos, showing a matriarch's death and the reactions of other elephants, has helped scientists better grasp the animals' behavior. Warning: graphic images.

Scientists have used the world's largest microscope to take the first detailed images of tiny fossilized embryos dated to the dawn of animal life.

Watch as a king snake learns a painful lesson in the power of family ties when it tries to make a quick meal of a nest of thrasher chicks.

The latest Samuel L. Jackson horror movie Snakes on a Plane slithers into cinemas on August 18. Go behind the scenes and get the facts with our roundup of snake news, photos, and videos.

See how the Middle Eastern attraction had to rebuild after being swindled by some real snakes—false reptile experts who made poor enclosures that likely caused all but one of the park's animals to die.

The sooty shearwater has made a nest in the record books—the small bird's huge commute from New Zealand to the North Pacific is the largest ever recorded electronically.

The territorial birds sing a four-part chorus in groups and are so precise that a casual listener wouldn't realize there was more than one singer, experts say.

Use of antibiotics in U.S. livestock may have helped create more resistant strains of the bacteria that cause the most common food-borne illness, a study shows.

The proposed federal designation in the Puget Sound region of the U.S. Northwest has residents, conservationists, and developers locked in passionate dispute.

Watch as a female anaconda in Venezuela hunts down a capybara—the world's largest rodent—and swallows her meal whole.

This week: medieval psalmbook found in bog, DDT returns, giant dino found, Mideast conflict harms animals, inside Hezbollah, "half baked" lobster caught, and more.