It made itself bigger.
Continuing to treat urinary tract infections as a short-term, routine ailment rather than a long-term food safety issue risks turning the responsible bacteria into a major health crisis.
Dinner cooked in plastic bags may sound more like airplane food than haute cuisine—but today, thanks to a cutting-edge culinary technique, it’s both
Olivia Judson, author of "The Selfless Gene," discusses the evolutionary roots of altruism and fellow feeling
New evidence from two caves in Western France deepens an old mystery about our fellow hominins.
Melting sea ice is opening up the Arctic to more ships. The results could be catastrophic.
CHARLOTTE JACKSON, who is the author of seven juveniles, is children’s book editor for the San Francisco CHRONICLE.