Waninoko

Waninoko is a bipedal, crocodilian Pokémon with well-developed jaws. It has red eyes with ridges above them, black markings around its eyes, and several sharp teeth. On its chest is a yellow, V-shaped marking that extends to its arms; there is a thin line through the center of the marking. Waninoko has five fingers and three toes. Down its back is a row of three red spines with a small, red ridge on either side. The tip of its tail has a single red spine as well. Waninoko tends to be playful by nature and has a habit of biting anything it sees, including its Trainer. However, its jaws are capable of crushing anything, so it sometimes causes serious injuries. Waninoko is scarce in the wild, though it can be found around bodies of water like rivers, ponds, and lakes.

(Source: Bulbapedia)