Aipom

Aipom is a strange looking monkey-like Pokemon. It is a pure Normal type Pokemon. Aipom is known for its signature hand on the end of its tail, to which it use it as a regular hand.

Aipom was not known to evolve until Generation II, when it was discovered that it can evolve into an Ambipom by leveling it up after it knows the move Double Hit, thereby causing it to grow another tail and a hand on the end of that tail, as well.