Dog

Dogs are a very rare species in the Mario series, but they do exist. Some people keep them as pets, but there are also more intelligent, anthropomorphic dogs. Chain Chomps act very similar to dogs and were even inspired by a real life experience of Shigeru Miyamoto that involved a dog. In the Club Nintendo comic "Rummelplatzquatsch", a pack of dogs urinate at Luigi. In WarioWare: Smooth Moves, many dogs were seen entering Club Spice alongside Jimmy P.

Poochy is a helpful, reoccurring dog character in the Yoshi series who first appear in Super Mario World 2: Yoshi's Island. He usually serves as a moving platform that charges through enemies and jumps through the air, allowing Yoshi to access higher areas.