News
-
Malaria parasite reveals old age
The DNA of a malaria-causing parasite suggests it is at least 100,000 years old.
-
Biological clock study challenged
A report disputes the controversial notion that bright light applied to skin can reset a person's biological clock.
- Health & Medicine
Worm genes take on bacterial foes
Creatures as simple as worms have an effective immune defense.
- Archaeology
Ancient birth brick emerges in Egypt
Investigations at a 3,700-year-old Egyptian town have yielded a painted brick that was used in childbirth rituals.
- Anthropology
Ancient populations were game for growth
Archaeological evidence of a Stone Age shift in dietary preferences, from slow to swift small game, suggests that the human population rose sharply sometime between 100,000 and 50,000 years ago.
