1. Endangered lemurs use their tail for balance and as a display to attract opposite sex. Their entire diet consists of fruit.
2. Flamingos get their bright pink color from their diet of shrimp and krill.
3. Flamingos stand on one leg for heat conservation; they lift one foot and pull it under their feathers. Then they change legs and tuck the other one under. They sleep this way, too.
4. Magellanic penguins can live in varieties of temperatures as opposed to the Emperor penguins featured in "The March of the Penguins."
5. Magellanic penguins have 70 feathers per square inch of skin and a layer of blubber beneath their skin.
6. Baby wallabies are born the size of a grape and not fully developed.
7. The wallabies crawl up their mother's fur, find their way to the pouch, and attach to the teat inside. They'll develop there for four to five months and then stick their head out to watch their mother and learn the ropes.
8. Sloths spend so much time hanging upside down that their physiology has adapted; their hair grows in the opposite direction -- from the rear to the front -- and their organs are also upside down in the body. The sloth is immobile for 18 hours a day.
9. A zebra's stripes are like fingerprints; no two patterns are alike.