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.
City-dwelling coyotes in the United States choose lifelong partners.