Rattata

Rattata (コラッタ Koratta) is a small, but unspecified rodent. It is a -type Pokémon. Its most notable feature is its large teeth. Like most rodents their teeth grow continuously throughout its life, and must be constantly worn down by gnawing. It will bite anything when it attacks, though it will live peacefully side by side with Pidgey.

It evolves into Raticate starting at level 20.

Special Abilities
Rattata's teeth grow very quickly and they can survive almost anywhere. They also utilize their teeth so they can use attacks such as Super Fang and Bite.

In the Anime
A Rattata was seen by Ash Ketchum in Pokémon - I Choose You!, being the second wild Pokémon he ever saw.

A.J. had three Rattata at his gym in The Path to the Pokémon League.

In Gonna Rule the School, a student used a Rattata in battle.

Many Rattata ran away from the chaos caused by Pokémon Hunter J in Pokémon Ranger and the Kidnapped Riolu! Part One.

Casey had a Rattata in The Double Trouble Header, but it was never seen afterwards.

In Arceus and the Jewel of Life, Rattata appeared in the fight against Marcus.

Generation I
Main article: Rattata/Learnset Generation I

Generation II
Main article: Rattata/Learnset Generation II

Generation III
Main article: Rattata/Learnset Generation III

Generation IV
Main article: Rattata/Learnset Generation IV

Origins
Rattata is based off of a rat. Rattata's name incorporates the words rat and possibly attack, considering its original name was going to be Rattatak. Koratta, the Japanese name, comes from rat and the prefix 小 ko, meaning small.