Watch: Leopard shows tremendous strength, tiger-crocodile-wild boar's spine-chilling fight

Here are two such videos, which are going viral on the internet, that might prove Darwin's "Survival of the Fittest" theory. 

Watch: Leopard shows tremendous strength, tiger-crocodile-wild boar's spine-chilling fight

Darwin's evolutionary theory "Survival of the Fittest" is the law of the nature and not just a theory. And this law, makes the predators hunt their prey which further maintains the food cycle. However, seeing the predators hunting their prey sometimes shock people.

Here are two such videos, which are going viral on the internet, that might prove Darwin's "Survival of the Fittest" theory.