A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A crocodile cannot stick out its tongue.
1k
Some ribbon worms will eat themselves if they can't find any food.
-33
Domestic cats hate lemons or other citrus scents.
33
Spotted skunks do handstands before they spray.
32