Heartwarming Photos Prove Capybara Can Befriend Every Other Species

If the animal kingdom were a school, this chap would be the most popular student in every class. Meet the capybara - the world's largest rodent, which also appears to be the friendliest critter on earth. The capybara, which can grow to around four feet in length and weigh up to 145lbs, is a highly social semi-aquatic mammal that lives in groups as large as 100, and is native to the forests and marshes of South America.

Looking like a cross between a beaver and a guinea pig, the capybara has the not very flattering nickname of "water pig" in South America but once you learn a bit more about these rodents of unusual size it's hard not to find their super-serious faces and sturdy shapes adorable.