Video from the Haíɫzaqv Nation Indigenous community shows a wolf hauling a crab trap ashore. Scientists are split on whether it counts as tool use.

Newly mated parasitic queen ants invade colonies and spray their victims with a chemical irritant that provokes the workers to kill their mother.

The Trump administration’s cuts to heat research come at a time when climate change is making extreme heat waves more common and intense.

After a decades-long hiatus, new world screwworm populations have surged in Central America and Mexico — and are inching northward.

Ancient RNA from Yuka, a 40,000-year-old woolly mammoth preserved in permafrost, can offer new biological insights into the Ice Age animal’s life.

An analysis of mining plumes in the Pacific Ocean reveals they kick up particles sized similarly to the more nutritious tidbits that plankton eat.

Interruptions, to-do lists, lack of autonomy — “time poverty” depends more on perceived shortages of time than actual ones, recent research suggests.

Some of the earliest images ever taken in the wake of massive star’s death give astronomers important clues about what triggers a supernova.

The drug enlicitide reduced cholesterol for adults with high levels due to an inherited disorder and may also work for a broader population.

A child-friendly brain imaging technique is just one way neuroscientist Cat Camacho investigates how children learn to process emotions.

Some “clicks” made by sperm whales may actually be “clacks,” but marine biologists debate what, if anything, that means.

Streams of liquid form drops thanks to unidentified disturbances. It could be the jiggling of individual molecules.