Often hides in water to stalk unweary prey. When swimming quickly, it moves its ears to maintain balance.
Prototype Pokémon Leagues were given the Trainer Deck B, which included this card, before the Base Set's release. All cards in this deck have a red border and "Trainer Deck B" printed on the back. This card was included in the Base Set, first released in the Japanese Expansion Pack. It was reprinted in the Base Set 2 expansion. A special W Wizards stamped version of the Base Set 2 print was released with the March 2000 issue of Top Deck Magazine.