1. If a snail doesn't like the weather, it can hide in its shellfor up to three years.
2. Owls have three eyelids on each eye: one for blinking, one forsleeping, and one for cleansing.
3. When the female in a group of clownfish dies, the most dominantmale turns into a female to replace her.
4. Koalas sleep for 22 hours a day.
5. Swifts spend most of their lives in the air, and can fly aslong as 10 months without stopping.
6. Hummingbirds flap their wings as many as 200 times per second,which uses so much energy that they need to eat up to eight times their bodyweight every day.
7. If a tarantula loses a leg, it can just grow a new one.
8. Wood frogs can freeze completely during winter, and then thawin the spring.
9. Badgers can dig underground dens that have up to 50 exits andare able host multiple badger families.
10. Sloths climb down to the ground only once a week — to poop.
11. Even if you cut off a cockroach's head, it can still live fordays.
12. Octopuses can use their arms to taste and smell.
13. Not only can turtles live to be more than 150 years old, butthey can also feel through their shells.
14. Anteaters don't have teeth, but their tongues are extremelysticky and can grow up to two feet long.
15. And giraffes' tongues are so long they can lick their ownears.
16. Crocodiles can survive for three years without food.
17. Tapirs love swimming, and use their flexible noses as snorkelsin the water.
18. Everyone knows chameleons change color, but they can also movetheir eyes separately and look in two directions at the same time.
19. Speaking of changing color, wild turkeys' heads change betweenred, white, and blue depending on their mood.
20. Flamingos pee on their own legs to cool off.
21. Sharks grow new teeth constantly — up to 30,000 in a lifetime.