The Skeptics Society & Skeptic magazine

While we joke that men are from Mars and women are from Venus, our gender differences can’t compare to those of other animals. For instance: the male garden spider spontaneously dies after mating with a female more than 50 times his size. Female cichlids must guard their eggs and larvae—even from the hungry appetites of their own partners. And male blanket octopuses employ a copulatory arm longer than their own bodies to mate with females that outweigh them by four…