Biology

Scientists have finally figured out how to make heads or tails of starfish

A deep-sea expedition discovers a strange, dark world of strawberry squid and ratfish in cold-water corals near the Galápagos Islands

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating—and sometimes terrifying—behaviors

The Endangered Species Act requires that every U.S. plant and animal be saved from extinction, but after 50 years, we have to do much more to prevent a biodiversity crisis

Geneticists don’t know what most human genes do. A new research tool may help

The influential idea that in the past men were hunters and women were not isn’t supported by the available evidence

Under the right conditions, the spadefoot tadpole will transform into a voracious predator of its own species.

Lions, tigers, bears: this creature sends all of those beasts running for the hills.

Postreproductive life was once thought to be confined to humans and a couple of toothed whales, but some wild chimpanzees experience it, too

 “Pepper X” is officially the hottest pepper in the world, weighing in with 2.693 million Scoville heat units. The creator reveals his process and experience tasting the pepper

Can something spring back to life if it last moved around when woolly mammoths roamed the earth? The answer appears to be yes.

The answer to the question of how many sexes exist differs depending on the context