Soon after human ancestors began walking upright, female vertebrae started to evolve to help pregnant women keep their balance as their babies grow, a new study says.
Humans are evolving more quickly around the world, but local cultural and environmental factors are shaping evolution differently on different continents, according to new research.
Human pygmies around the world are smaller than average because they tend to live very short lives, in some communities as little as 16 years, a new study says.
The discovery, detected in hominid remains found in Turkey, could shed new light on the roles of climate, health, and evolution in ancient human migration, experts say.
A new Ebola strain has killed health care workers in Uganda. There's no cure for the disease, and this subtype doesn't always show the classic symptoms.
Mysterious modern mummies draw tourists to a small Colombian village. Although scientists don't know how the corpses were preserved, some locals credit a spiny, berry-like fruit.
The first known birth outside China of an extremely endangered South China tiger—there may be no more than 30 in the wild—draws both celebration and concern.
AIDS could spread faster through China's general population now that sex has overtaken drug use as the chief means of contracting the virus that causes the disease, experts fear.
In a find that may ease political and ethical concerns, two teams of scientists have made human skin cells take on many of the properties of embryonic stem cells.
