News
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The Fat Track: Signals between cells keep creatures lean
An ancient cellular pathway that determines cells' fates also inhibits fat formation in insects and mammals.
- Health & Medicine
Put Down That Fork: Studies document hazards of obesity
Being overweight or obese in middle age increases a person's risk of heart or kidney problems later in life.
- Animals
Little Professor: Ants rank as first true animal teachers
The best evidence so far of true teaching in a nonhuman animal comes from ants. With video.
- Humans
Faked Finds: Human stem cell work is discredited
South Korean scientist Woo Suk Hwang faked embryonic stem cell findings, say investigators from Seoul National University.
