The survival in the open nature is an on-going fight. Once you pop out of your mother’s womb you have to be ready to fight. But, as odd as it sounds, some have to get ready before they join the earth’s surface.

Tiger sharks and so called Raggies can’t enjoy a peaceful childhood, let me tell you that. Eggs of those species hatch inside the womb (other shark species place their eggs in between seaweed), which means the young have to share a tiny space very early on. Because of those tight conditions they often feed of each other until only a quarter of them are left. Those, which are left have proved to be the strongest and deserve to be born, sort of.

Sharks however, are not the only animals whose youngs have to fight to survive in the womb. Tasmanian devils count as marsupial, which means they crawl into their mother’s pouches to mature until they are “finished”. The mother give birth to an average of 20-30 youngs. Once they are born they practically kill each other to get to the mammary gland of which 4 (!) exist.

You don’t have to be a mathematician to know what happens next. There are two scenarios: The first being that the freshly born youngs kill each other to get to the milk or the second scenario: The mother simply feeds off her own until only a few are left. Now, who still wants to share a traumatic event from his or her childhood?

Copyright and Source: http://upload.wikimedia.org/wikipedia/commons/1/13/Tiger_shark(2).jpg