Watch this unsettling video of an aggressive hippo with incredible speed chasing after a boat full of nervous tourists!

In effect Colombia boasts the biggest hippo population outside of Africa. Different estimates point to something between 90 and 180 animals, but there are still doubts about the real number.

making them the second largest animal on land. Despite this enormous size, however, hippos are herbivores and aren’t naturally aggressive. But they are very territorial. If a hippo feels ...