Poop. Doo-doo. Dung. Number 2. No matter what you call it, you can learn all about it at The Scoop on Poop opening this weekend at the San Francisco Zoo. Learn how animals use poop to build homes, hide from enemies and attract mates and some even eat it! This interactive, family-fun exhibition is sure to open your eyes and ears to the world of poop. Open Jan. 25 – May 11.