Modern humans may have dispersed in more than one wave of migration out of Africa, and they may have done so earlier than scientists had long thought,...
Read Whole Story
One key contributor to a good immune system is good genes. Lately, researchers have been asking, Where did these "good genes" come from? The answer: sex with Neanderthals.
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements. Learn more.