Reasons why Black Widow Spider is so dangerous

We have all read or heard about male animals who mate with multiple females. But it is also true that many animals work in just the opposite way. In those cases, a single female is known to court and mate with males. This kind of mating system that is known as polyandry can often showcase some fascinating dynamics between animals of both sexes. This is because males (even animals) are constantly competing to beat each other. They do this to ensure that only their genes make it to the next generation. The different ways that this competition can happen...

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