Lets play "Guess that animal"!

Elvis- "Adopted!"

Eat and Sleep- Elly
Barked: Wed Oct 8, '08 11:07am PST 
Ok, I will give an example. Here it is:
Q: I usually come in the colors orange, green, yellow, blue, and brown. I live at a pond and catch flies. What am I?
A: Frog
Ok, Now lets start. Here is the hints:
Q: I am a rodent, and I have wrinkly fur, and I am medium size. What am I? way to go