American Black Bear (Ursus Americanus) from the viviparous quadrupeds of North America (1845) illustrated by John Woodhouse… Free Image from public domain license 
Polar Bear (Ursus maritimus) from the viviparous quadrupeds of North America (1845) illustrated by John Woodhouse Audubon… Free Image from public domain license 
Rocky Mountain Sheep (Ovis montana) from the viviparous quadrupeds of North America (1845) illustrated by John Woodhouse… Free Image from public domain license