Poliwhirl is a Water-type Pokémon introduced in Generation I.
It evolves from Poliwag starting at level 25. It evolves into Poliwrath when exposed to a Water Stone or Politoed when traded holding a King's Rock.
Even though Poliwhirl is capable of moving on land, it prefers to stay in freshwater ponds and lakes where it has fewer natural enemies. It feeds on both bug and fish Pokémon. While it will leave the water to capture bug Pokémon, it will return and consume them underwater in safety. Its swirl is used to make children fall asleep. Poliwhirl's sweat is filled with slimy mucus. When captured by an enemy, its either slithers to escape or use its swirl to put the enemy to sleep.