The Meaning of Dog Barks

Scientists find that plants can act altruistically toward their siblings.

Meet some tropical insects whose homes mysteriously point toward the poles.

Dinosaur prints in an ancient Australian fossil bed stir a modern debate; were they stampeding, or just out for a swim?

Super-strong hagfish slime might become the fabric of the future.

The hunt is on to find undiscovered animal species in Europe.

Gross Science: How bed bugs reproduce is the stuff of nightmares.

Gross science: This parasite crawls into a fish’s mouth and replaces its tongue. Enough said.

Watch David Pogue shake his money maker like a honeybee.

Slime molds may be brainless, but they aren’t stupid.

Watch David Pogue struggle in a race against one of nature’s most adept navigators.

From bed bugs to eyelash mites, a jungle of insects and arachnids thrives on and around the human body.

Listen to a variety of dog barks—from woofs to whines—and try to interpret their meaning.

See some of Nature's stickiest, toughest, and cleanest materials, and learn how they are inspiring new products.

Hear experts "pitch" for dogs, cats, honeybees, hyenas, and other smart species, then vote for your favorite.

From a 122-year-old woman to the oldest organism on Earth, explore cases of remarkable longevity.

When it comes to camouflage, few species can outdo an octopus.

Could social intelligence be the key to hyenas' deadly hunting skills?

Biologist Maydianne Andrade says that the gruesome mating behavior of some spiders is a lesson in evolution.

Hear what amateur birders looking for the ivory-billed woodpecker have to say about their hunt for the elusive bird.