What is a 4 letter hairy mammal?

This is a bit of a riddle! Here are a few possibilities, depending on how you interpret "hairy mammal":

* BEAR - A large, hairy mammal.

* WOLF - A wild, hairy canine.

* MICE - Small, furry rodents.

* GOAT - A farm animal known for its fur.

Let me know if you had a specific answer in mind!