This is a paid asset, but now you can download ANIMALS PACK lowPoly for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
ANIMALS PACK lowPoly v1.0
Pack of low poly style animals with armature(bones):
Deer(1414 tris),
Boar(752 tris),
Bear(620 tris),
Fox(730 tris),
Wolf(776 tris),
Hare(792 tris),
Squirrel(640 tris).
Colors of animals are textures..