Hippos are some of the earth’s largest land animals. Their name derives from Greek when they were called “river horses,” although “river cows” might have been a better description. These ferocious ...

HIPPOPOTAMUS IN WATER TWO FIGHTING WIDE OPEN MOUTH LAKE FIERCE BATTLE TERRITORIAL COMBAT AFRICA BIG FIVE© Fayad Hameed/Shutterstock.com Tourists can get up close and personal with wildlife when they ...

Source: Steven Castaño/with permission. The case of the Colombian hippopotamuses is a clear example of "bioxenophobia" (or biological xenophobia, a dislike of invasive, alien species) and bias in ...