Researchers have uncovered how successful chromosome segregation during sexual reproduction is achieved in plants. The ...

One of the immutable truths about being alive is that we age. This happens at every level, down to our cells. When they divide, our cells copy our DNA into each new cell. But as the weeks, months, and ...

For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

Researchers at the Max Planck Institute in Germany looked for clues in animals. In humans, women live an average of five years longer than men. In seven out of ten animals species, the female will ...

The researchers examined demographic and endocrine data for a population of chimpanzees in Uganda, one that had been studied by researchers for many years. They "found clear evidence for menopause in ...

All species must reproduce to continue their existence. Furthermore, they must raise enough offspring to replace individuals who die. If reproduction falls below replacement level, a population ...