Understanding hammerhead sharks’ food preferences could aid efforts to protect the critically endangered fish.

Fires and agricultural soils can rival cars and factories in emitting chemicals that lead to ozone, making it hard to meet air quality standards.

The seals’ ability to detect the amount of oxygen in their blood may help them make diving decisions and avoid drowning.

Brain activity in vocalizing budgerigar parrots showed a pattern that harkened to those found in the brains of people.

Infants can form memories, and they use a memory structure in the brain called the hippocampus to do it, researchers report in the March 21 Science. The results shore up the idea that memories can in ...

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

Salto the jumping robot can take a flying leap and land on a narrow pipe — just like a squirrel soaring from branch to branch.

Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

Astronauts Suni Williams and Butch Wilmore’s extended stay in the International Space Station will add to what we know about how space affects health.

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

The iguanas' 8,000-kilometer trip — one-fifth of the Earth’s circumference — is the longest made by a flightless land vertebrate.

In the sixth episode of The Deep End, listen to what’s next for Jon Nelson and for deep brain stimulation research for depression.