Smeargle is a bipedal, beagle-like Pokémon with white and brown fur. It has a long tail with an end resembling a paintbrush. This paintbrush oozes with paint, and the color of the paint may vary for each Smeargle, as well as change in hue corresponding to its emotions. Smeargle has a footprint on its back that is typically the same color as the paint on the tip of its tail, though Smeargle can have separate back and tail colors in Pokémon Stadium 2. The mark is placed on Smeargle's back as a sign of adulthood. Smeargle also has a round structure on its head with a point that resembles a beret. It has floppy, brown ears and a brown collar on its neck. The rings encircling Smeargle's eyes are also brown, as are Smeargle's eyelids. Its arms have two brown bands, and its legs have only one. Each of its limbs has three digits.

Smeargle uses its paint to mark its territory. There are over 5,000 known different marks that Smeargle uses. Each Smeargle's tail is predetermined by the mysterious fluid secreted at the tip of the tail. There are Smeargle fanatics who will pay big money to own one. It can also use its signature move, Sketch, to copy moves from other Pokémon. Smeargle is often found in urban areas filled with graffiti.

(Source: Bulbapedia)