HealthHuman eggs release chemicals that attract some sperm more than others A person’s eggs release chemicals after sex that preferentially attract sperm from certain people, which might help explain why some people have fertility problems News
HumansWe may now know what our common ancestor with Neanderthals looked like A prehistoric human species that lived in Europe 1.2 million to 800,000 years ago is emerging as a contender to be our last common ancestor with Neanderthals News