The unkind act of butchering and eating your mate after sex, typified by the female black-widow spider and praying mantis, may make for healthier babies, new research suggests. The researchers found ...

Female praying mantids are known for eating their mates, but what is the evolutionary advantage to this practice? This series of images is taken from film shot for Evolution: "Why Sex?" It depicts two ...

Bug lovers will recall that the female praying mantis cannibalizes the head of her sexual partner upon mating. Turns out this may not entirely accurate. Placing them in the same jar, the male, in ...