If you go down to the woods today, you're in for a big surprise -- if you drink contaminated water.

Facts: A hard outer shell allows giardia to survive in the wide world, but it is most at home in the great indoors of the human and animal intestine. Some estimates suggest that giardia infects up to 20% of the world's population.

Purchase this plush to find out more! Great for use in the classroom, to annoy friends or just to have something off the wall for a conversation starter!