Archaeologists have recovered three unusual burials of Celtic women and girls who may have been sacrificed in England.

Authorities have killed several lab monkeys that escaped from an overturned truck in Mississippi. The rhesus macaques were initially thought to be diseased and dangerous, but that's not necessarily the case.

A gene on the X chromosome revs up inflammation in the female brain, which may explain why rates of multiple sclerosis are higher in women than in men, scientists suggest.

Researchers have developed a chemical structure for an artificial muscle that can lift up to 4,000 times its weight, and they say it could be used in future humanoid robots.

Archaeologists in Hungary have found the 1,300-year-old burial of a warrior who was buried with a rare iron saber.