Theories that men will eventually become extinct because the Y chromosome which determines maleness is shrinking are quite wrong, according to a gene study published on Wednesday.   more

Russian scientists have grown flowering plants using seeds stored by squirrels 30,000 years ago and preserved by the Siberian permafrost, a new study showed, in what may become a key experiment in the race to revive ancient species.   more

A traditional Chinese medicine company at the heart of an angry Internet campaign accusing it of cruelty to animals opened one of its controversial bear bile farms to journalists on Wednesday.   more

Monkeys suffering from Parkinson's disease show a marked improvement when human embryonic stem cells are implanted in their brains, in what a Japanese researcher said Wednesday was a world first.   more

Australian researchers Thursday revealed they had filmed a pod of extremely rare Shepherd's beaked whales for the first time ever.   more

US health authorities said Tuesday they will import a drug to treat ovarian, bone marrow and AIDS-related skin cancer from India in order to ward off a worrying shortage.   more

An outbreak of Lassa fever has killed 40 people and infected dozens of others in a third of Nigeria's 36 states over the past six weeks, a senior health official said Wednesday.   more

A new drug to treat advanced skin cancer, or metastatic melanoma, has been shown to nearly double average survival time in a study of more than 130 patients, researchers said Wednesday.   more

The British government on Thursday vowed to investigate newspaper reports that doctors illegally approved abortions that were requested due to the sex of the unborn child.   more

Tests on a 19-year-old woman who died last week showed she had contracted the bird flu virus, Indonesia's third human death from the deadly disease this year, the health ministry said on Tuesday.   more