Think you know a thing or two about sex? Think again. In this fascinating talk, biologist Carin Bondar lays out the surprising science behind how animals get it on. (This talk describes explicit and aggressive sexual content.)

Motherhood in Homo sapiens is the most complicated and enigmatic result of the evolutionary process. Despite the fact that humans are subject to the same biological pressures as the rest of the animal kingdom, our brains are far larger than even our closest primate relatives. What are the ultimate evolutionary repercussions of having the ability...