Chimchar are chimpanzee-like Pokémon, primarily a shade of orange, but with light yellow on its face, outer ears, underbelly, hands and feet. The flames on their rears are produced by burning gas in their stomachs. The flames do not go out in the rain, and, unlike the tail flames of Charmander, those of Chimchar go out when they go to sleep. Although difficult to spot (due to Chimchar's tail flame usually obscuring it), Chimchar has a small, rounded patch of red coloration on its rear. Chimchar's ears are large in comparison to its head size, and have red ear insides. Chimchar have red markings above and to the sides of their eyes, a swirl-like symbol on its chest and five fingers on its hands with three toes on its feet.