Hippos Are More Dangerous Than They Look Don’t let their chunky, seemingly docile appearance fool you—hippos are among the [… ...

For now, maybe. But Colombian biologist Nataly Castelblanco-Martínez has pointed out that since hippos aren't native to Colombia, they have no natural predators in their new and ever-expanding ...

Ms Castelblanco explains that the "cocaine hippos" have seized an evolutionary opportunity. They do not have natural predators in South America, meaning they can reproduce much more easily.

A study by researchers Nikolaos Gerakakis and Prof. Dimitrios Makris has successfully reconstructed the skull of an extinct dwarf hippopotamus that once roamed the island of Crete, using ...

Is it connected to their habitat, the climate they live in, or their predators? It may be all of the above! The skin of a ...