That should you know

A cat has 32 muscles in each ear.A cockroach can live several weeks with its head cut off.
A giraffe can clean its ears with its 21-inch tongue.
A giraffe can go without water longer than a camel can.
A goldfish has a memory span of three seconds.
A hippo can open its mouth wide enough to fit a 4 foot tall child inside
A shark is the only fish that can blink with both eyes.
All porcupines float in water.
An iguana can stay under water for 28 minutes.
An ostrich's eye is bigger than its brain