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Arbok (Japanese: アーボック, Hepburn: Aabokku) (ARE-bock[1]) is a Poison-type Pokémon introduced in Generation I.
Arbok bears a resemblance to a cobra, with the majority of its body being purple. Arbok has a "hood" much like a cobra, though it has never been shown to be able to retract it. There is a red, black and yellow pattern on their hood that looks somewhat like an angry face to intimidate other Pokémon. It is known that there are six different patterns on Arbok, each one appearing in a different generation.
This Pokémon is extremely territorial. Arbok are known to be vengeful and are absolutely ruthless in pursuing anyone or thing that angers them. They are also known to hunt smaller Pokémon like Woopers and are capable of slithering to higher places such as trees to do so.