Dewgong

Dewgong is one of types of Pokémon species. It was introduced in the first generation of Pokémon titles, which includes Pokémon Red and Blue (for America and Europe - in Japan it was Red and Green). It's a seal like character and the evolved form of Seel.

Description
Dewgong are capable of swimming at 8 knots, even if the waters are icy cold. If they see a threat ahead they can manage to quickly turn around and start swimming in the other direction.