Why mantis female sexual cannibalism?

A number of female mantis bites their mates after mating, causing headache scientists to argue about how good her actions are for evolution.

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The cannibalism after mating is common in mantis and some other animals such as spiders, scorpions, crickets, grasshoppers, beetles. This is a problem that evolutionary theorists must find a way to explain.

Many people can argue that reproductive behavior and eating of males have nothing to do with each other. Some biologists say that it is simply hungry. The females are much larger, may not be able to resist a males meal, so the males are harmed.

Then, when more information becomes available, the researchers point out that well-nourished mantises don't eat at the same time, while starved females eat any males they see. whether or not mating.

However, there is no evidence of coherence between these two behaviors, and males may even benefit, said Dr. Biology, Vu Van Lien, of the Vietnam Nature Museum.

The behavior of cannibalism after mating is not mandatory for mantis to breed. This behavior can help your child have a good source of nutrition for himself and his children.