Poliwrath, known as the Tadpole Pokémon, is the evolution of Poliwhirl. It has thicker arms, darker skin, and a slightly differently shaped "head area," giving more of the impression that it is like a boxer. Poliwrath is a master swimmer in every respect, due to its highly developed body and arm muscles that never fatigue regardless of use. Thanks to its incredible stamina, Poliwrath is said to be physically able to swim the entire diameter of the Pacific Ocean without obvious effort, and its swimming efficiency allows it to easily overtake the best human swimmers in any controlled competition. Although it is more skilled in the water, it lives on land. Poliwrath has made several appearances in the Pokémon anime, first appearing in "The Battling Eevee Brothers" and later as an opponent in "Charizard Chills" and "Hook, Line, and Sinker." Chuck used a Poliwrath against Ash in his Gym Battle in Machoke, Machoke Man. In the Pokémon Adventures manga, a Poliwrath named Poli was Red's first Pokémon and was obtained as a Poliwag before the first chapter. Along with Pika and Saur, it is one of Red's most frequently used Pokémon. In Buzz Off, Electabuzz!, Poli evolves into Poliwrath to save Red from drowning after touching a Water Stone, one of the four stones speculated to be at the bottom of Vermilion Harbor. At the Pokémon League, Poli and Pika helped Saur defeat Blue's Charizard. During the Gold arc, Red does not carry Poli on his team with him, enabling him to use both Green's Blastoise and Blue's Charizard. Poli's Damp ability combined with Deoxys's use of Skill Swap enabled Red to counter Carr's exploding Forretress in the FRLG arc.