Sneasel

Sneasel is a very rare Dark, Ice-type Pokémon from Johto region. It does not evolve into nor from any Pokémon currently.

Pokédex description
Sharp Claw Pokémon

''Sneasel scales trees by punching its hooked claws into the bark. This Pokémon seeks out unguarded nests and steals eggs for food while the parents are away.''

Evolution family
Sneasel is part of a one-member family.

Trivia

 * Since Generation IV of core series games, Sneasel evolves into Weavile, but in Pokémon GO it's currently not possible.