Animal Chain

We're going to start the longest chain of animals.

Rules:
Post an animal that has something in common with the animal above and say one thing they have in common.

Example:
BillyBob: Dog.
ManlyMax: Cat. Reason: They both have fur.
[b]ZestyZack: Crab. Reason: Their names both start with C.

Let's start!

Gray wolf.

Sayeth whaaat?