It is not known to evolve into or from any other Pokémon.
Stantler are antlered Pokémon that are similar to real-life reindeer or caribou. These Pokémon are quadrupeds, with each leg ending in a black hoof. The pelt of a Stantler is a tan color with a cream-colored belly and a few cream-colored spots on the back. They have large, brown noses and a pair of pale cream-colored antlers, each with a black orb in the center. There is confusion whether the tail of a Stantler is cream or brown, since the artwork has differed this way between generations.
Stantler can distort reality and create illusions with its antlers by subtly changing the flow of air around them. Staring into them creates an odd sensation, as if one is being sucked through them, and one may become so dizzy it makes them impossible to stand. Its strange antlers are very valuable artifacts that Pokémon hunters poach Stantler for. The species was nearly driven to extinction for this. The round balls found on the fallen antlers can be ground into a powder that aids in sleeping.
It can be presumed that Stantler shed their horns at some point, as a Pokédex entry references its fallen antlers. If a baby Stantler is separated from its herd and frightened, it will instinctively produce an illusion of a big, stampeding herd to scare away the perceived threats.
Stantler live in herds in forests or mountainous terrain.