sexual

Statue of 35,000-year-old nude woman
A German scientist has discovered a statue of nude ivory women dating to 35,000 years.
Parasites only mate when enough
On the Science page this week, he and his colleagues at the National Institutes of Health reported that they finally found the answer: putting enough Leishmania individuals into
Detecting sex reduces genetic changes
Biological textbooks have always said that the main function of sex is to promote genetic diversity. However, Henry Heng does not agree with this view.