News

Humans

Brain’s blood appetite grew faster than its size

Over evolutionary time, the energy demands of hominid brains increased faster than their volume, a new study finds.

Astronomy

Radio signal probably not from extraterrestrials

A possible radio signal from extraterrestrials probably originated a lot closer to home.

Animals

Dog brains divide language tasks much like humans do

Dogs understand what we say separately from how we say it.

Health & Medicine

Tasmanian devils evolve resistance to contagious cancer

Tasmanian devils are evolving resistance to a deadly contagious cancer.

Anthropology

Fossil autopsy claims Lucy fell from tree

A contested study suggests a famous fossil ancestor plunged to her death.