11 Of The Most Bizarre Animal Mating Behaviours In The World

Sword Penis

Bedbugs mate through a brutal practice known as traumatic insemination. Only this time, the males win. The hypodermic penis of this pesky parasite is as sharp as a sword and males use it to stab their female partners in the abdomen and deposit their sperm into the dead body cavity. Some male bedbugs use spikes to stop their female partners from getting away. Bedbugs also engage in penis fencing, wherein hermaphrodites fight over who gets to stab the other first in the abdomen. According to research, female bedbugs have a spongy reproductive organ, called a spermalege, that acts as a self-defense mechanism to reduce the harm inflicted by the stabbing.