Ever wondered why your cat's tongue is so scratchy?

[andrewducker]

e_apraksina had this.

Comments

[cybik.livejournal.com]

Cats' penises are like that, too.

Poor ladycats.

[ashfae.livejournal.com]

This is real?? Those spikes look made from plastic!

[soon_lee]

Cool picture. Inspiration for Velcro?

[khbrown.livejournal.com]

Keratin:

http://www.greatfelines.com/the-cat%E2%80%99s-tongue-43.html