News
- Anthropology
Early agriculture flowered in Mexico
Mexico may have served as a center of early plant domestication in the Americas, according to researchers who have excavated a site near Mexico's Gulf Coast.
- Planetary Science
Nearby star may have its own asteroid belt
Observations of warm dust swaddling a young, nearby star suggest that astronomers may have found evidence of a massive asteroid belt outside the solar system.
- Health & Medicine
Soy estrogens: Too much of a good thing?
Two studies of female mice suggest that genistein, an estrogen analog found in soy, could contribute to cancer risk.
- Earth
Memory problems linked to PCBs in fish
Adult exposures to polychlorinated biphenyls, from eating tainted fish, correlate with lower scores on learning and memorization tasks.
