Polar bear at the zoo walks backwards while moving its head up and down. Looks like dancing.
Black and white dog backs up on hardwood floor and sits on another dog's face.
ALTERNATE TAKES: Rottweiler dogs attack and "eat" vacuum cleaner
Chihuahua with a toy in its mouth growls when big dog tries to take it. Big dog drags chihuahua out of the room.
Dog wearing a cowboy hat howls along to a harmonica playing "Oh Susannah."