Cruel and terrifying things happen every day in the animal kingdom, and today we take a look at the four cruelest animals.
4th place: Cuckoo (cuckoo)
It is the most typical animal kingdom only born and not raised, for the cuckoo mother, raising a child is really too troublesome.
So the cuckoo mother will abandon the children before they are born, and before the cuckoo mother lays eggs, it will find a parasitic nest, push one of the eggs out of the nest, and then lay its own eggs in.
This behavior of the cuckoo mother is indeed shameful, in order to let other bird mothers bring their babies with peace of mind, they actually killed each other's children.
In general, cuckoo chicks grow faster than other birds. So, it won't be long before the larger little cuckoos drive all the other chicks out of the nest, and these chicks can only be starved to death or fallen. What is even more infuriating is that the mothers of these chicks do not know that the little cuckoo is the enemy who killed her own child, and continue to feed it as her own child until the little cuckoo flies away.