As far as terrestrial animals go, we know the elephant to be the most impressive and largest animal who roams the land. Compare it to some of the ocean’s biggest beasts however, and the elephant looks very tiny in comparison. An average elephant weighs about as much as an average blue whale’s tongue.

Male penguins must be quite patient. They have been known to stand in the unforgiving Antarctic elements and wait for up to two whole months without eating while the female penguins go and feed.

Nature and evolution throws up some strange things sometimes, as this list will attest to. One particularly interesting case is that of the poison dart frog, who has enough venom to kill a total of ten adult men.