Wednesday, June 12, 2013

Cat tongue

We just learned about the Northern Pike.

Have you ever been licked by a cat?

You'd know if you had, because their tongue is very rough!
It's rough like that to help when they're grooming, and if you look up close
you can see that their tongue has little spikes on it, almost like a hair brush!
cat tongue
(from: wikipedia - cat)

The spikes on the cat's tongue are made of keratin.
The same thing your hair and fingernails are made of,
and also rhino horns, turtle shells, and whale teeth!