World's Grossest (updog Books)

These gross animals are fleshy, slimy, and deadly! Learn about blood-sucking fish, stinky...

These creepy creatures will make your skin crawl! Learn about blood-sucking leeches, smel...

The past was disgusting. Sewage ran into the rivers people bathed in. Doctors drank their...

From earwax and bad breath to boogers and burps, the human body is a disgusting place. Le...

Get to work on the world's most disgusting jobs. Discover what sewer inspectors, pet food...

Discover a jungle of repulsive plants in this gross guide! Learn about a flower that smel...