Human ancestry informs the study of modern diseases.

Bones reveal that ancient human relatives were part-time tree dwellers.

How a deep-drilling experiment is fighting climate change.

A river valley found on a distant moon resembles Earth’s Nile.

A short-nosed bat bests its nectar-drinking cousin at pollination.

A web program creates disease maps to track epidemics.

A giant hole in the dust disk around a star could hold multiple planets.

DNA evidence identifies the world’s rarest whale.

Paying attention stimulates brain cells that improve memory.

Students partner with NASA to direct cameras orbiting the Moon.