Featured in butts

What muscles do squats work?
Viagra could have been a groundbreaking cure for period cramps
This fossilized butthole gives us a rare window into dinosaur sex
You can get all the benefits of butthole sunning without taking your clothes off
Scientists are investigating the secrets of smelly cat butts
The weirdest things we learned this week: the sweetest-smelling butts, flaming birds, and 40 barrels of coke
Meerkats use bacteria from their butts to make stinky graffiti
NASA Kepler Twitter Hack Becomes Butt Of Jokes
Scientifically Measuring A Sitting Butt With An MRI Machine
Why Are Monkey Butts So Colorful?