Mammals you didn’t know existed

From fanged deer to moles with tentacle noses, here are some of the weirdest species to ever call us family.

7 / 8
7 / 8

Capybara

In this photo, a yellow-headed caracara, a bird of prey related to falcons, has plenty of room to perch atop this oversized rodent. These gigantic guinea pig-like things are capybaras, the largest rodents in the world. Adults can grow to be 4 1/2 feet long and can weigh up to 150 pounds. And we want one.

Capybaras live in groups of about 10-20 members. They're somewhat aquatic and tend to occupy forested areas near water sources.

A couple days ago, some capybaras were found roaming around the Olympic Golf Course in Brazil, turning them immediately into some of the top folks to watch at the Olympics.

Photos and SlideshowsPhotos and Slideshows