How does a cow digest its lunch? “Eat, upchuck, chew the barfed-up cud.” That’s just a sample of a weird fact you’ll pick up at the cow station at the Animal Grossology exhibit at National Geographic in Washington, D.C.

This new exhibit is filled with all kind of gross facts. You’ll get the scoop on your cat’s hairballs, a cow’s four stomachs, weird undersea creatures, and more. You’ll also learn the science behind the yucky tidbits so you can explain the fact to your friends! The exhibits are interactive, and there are a bunch of games to play. Special demonstrations held every day will show you the science behind bioluminescence and how germs are spread between people.

Animal Grossology opens at the National Geographic Museum today. The exhibit will run through January 2, 2012.

Learn more about the Animal Grossology exhibit on the National Geographic Museum website.

Play Dung Beetle Derby on National Geographic Kids.

Photographs courtesy of Advanced Exhibits