" They were black, white, and gray, with black around their eyes and white around their muzzles,” Leafstar replied. “They walk on four legs like we do, but they can stand on their hind paws like a Twoleg. And they can grip things like a Twoleg, with their front and back paws. Their ears are like ours, but they have short, pointed muzzles like a fox. "

― Erin Hunter , Hawkwing's Journey (Warriors Super Edition, #9)