Neanderthal traces appear in genes for hair and skin.
Scientists locate body regions where emotions spark a response.
Bacterial infusions can heal gut microbe imbalances.
Sharing space with bacteria leaves plenty of room for change.
Is our family tree due for a pruning?
Stem cell mini-brains reveal how brain regions organize.
New intravenous vaccine prevents malaria in first tests.
In a Chinese quarry, scientists discover the oldest known fossil primate skeleton.
A life-threatening disease emerges in Botswana from mongoose hosts.
A breakthrough technique delivers a see-through brain.