Phione

“It drifts in warm seas. It always returns to where it was born, no matter how far it may have drifted.”

— Pokémon Alpha Sapphire

“A Pokémon that lives in warm seas. It inflates the flotation sac on its head to drift and search for food.”

— Pokémon Diamond

“When the water warms, they inflate the flotation sac on their heads and drift languidly on the sea in packs.”

— Pokémon Heartgold