Submitted by BlogEditor on Mon, 05/15/2017 - 15:41
By Andrea Meltzer
Sex is a defining feature of romantic relationships. From an evolutionary perspective, sex is essential for reproduction. Without it, the human species would die off. But some researchers have proposed that sex has a secondary function in humans and other animals whose offspring benefit from the presence of both parents—sex facilitates pair bonding and thus functions to keep couples happily together over time.