News
- Life
New titi monkey, at last
Travel risks in parts of Colombia had kept primatologists out for decades.
- Health & Medicine
Delivering a knockout
Scientists have finally succeeded in genetically engineering rats.
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Haiti quake reveals previously unknown fault
Scientists say the risk of future temblors in region is unclear.
- Life
How salmonella helps kill cancer cells
A bacterial foe gives the immune system a boost to seek and destroy melanoma. The findings may point to a vaccine for melanoma and other malignancies.
- Archaeology
Lucy’s kind used stone tools to butcher animals
Animal bones found in East Africa show the oldest signs of stone-tool use and meat eating by hominids.
