You’ve probably heard of species of spiders whose females will eat males during sex. But did you know that in some of these species, the males will try to protect themselves by binding the females’ legs with silk before copulation? It’s true, and according to this study, it has led to the evolution of males with longer legs to help restrain females. In other words, an arms race–or to be more specific…a legs race.
Benefits of size dimorphism and copulatory silk wrapping in the sexually