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.

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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.

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