Animals would prove fierce competitors at the Olympics — if only they would stay in their lanes.

From opera singers to toadfish, vertebrates may use basically similar circuitry for controlling vocal muscles.

Outsized brains may have sped up evolution of body size in birds.

Tasmanian devils have started mating much earlier in response to an epidemic, called facial tumor disease, that is wiping out much of their population.

First big species audit finds coral extinction risks severely under-reported

Mites that were thought to be parasites to their host wasps turn out to be bodyguards, attacking intruders.

With a lifespan of just five months, the chameleon Furcifer labordi leads a briefer life than any other land-dwelling vertebrate.

The 60th meeting of the International Whaling Commission defers voting on deadlocked issues

Nonnative earthworms are deliberately burying ragweed seeds, enhancing the weed’s growth, researchers report.

Scientists take a new look at what drives female damselflies to look like males.

A new study shows that playful 2-year-old chimpanzees may be particularly vulnerable to infectious diseases — some caught from humans.

Female chimps tend toward silent sex when the other girls could overhear.

Chinook salmon, dwindling in the United States, go wild in South America.

Scientists have revealed new details about the genes — and the goo — that enable luminescent bacteria to colonize their symbiotic marine partner.