Uncategorized
- Animals
Hybrid Power: Salamander invader ups survival of rare cousin
Mixed offspring of the endangered California tiger salamander and an invasive cousin survive better than either pure-bred species, raising tricky questions for conservationists.
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Aiding and Abetting: A longevity gene also promotes cancer
A gene that normally helps cells overcome stress can also promote cancer, perhaps offering a new target for cancer treatment.
- Anthropology
Walking Small: Humanlike legs took Homo out of Africa
Newly discovered fossils, 1.77 million years old, show that the earliest known human ancestors to leave Africa for Asia possessed humanlike legs, feet, and spines, but strikingly small brains and primitive arms.
