Clefable

Biology
Due to its round body, it can't run fast like its unevolved form Clefairy, but it floats in the air faster with the support of its relatively bigger wings on its back.

As states in, Clefairy and Clefable, as well as Jigglypuff and Wigglytuff, are believed to have come from space and adopted the earth-life over centuries. The strongest evidence for this is the fact that they require a in order to evolve. Also, due to the fact that Nidorino and Nidorina require Moon Stone for evolution as well, it is believed that these Pokémon have bred with them during the adopting process.

Behaviour
It is believed by the scientists that Clefairy and Clefable bred with Nidorino and Nidorina after they came to the earth and began to adopt the life on earth.

Oak's Clefable

 * Main Article: Professor Oak → Clefairy

Clefable debuts in as the chief Pokémon at Professor Oak's laboratory. She runs the errands and provides the peace of the laboratory. Remarkably, she uses Sing to put Pokémon in sleep if they are in a fight for nothing. She is also able to cure sick Pokémon and people by making contact with them. As reveals in, Clefable is also able to communicate with Professor Oak telepathically. She states that this is a myth that when a Pokémon builds a strong bond with its trainer, they could have such communication and understand each other deeply.

Minor Appearances

 * Clefable was mentioned by in, that they are believed to have come to earth from space.