Zangoose (Japanese: ザングース Zanguusu) is a - Normal type Pokémon. Its special ability is Immunity. It has had a rivalry with Seviper for many generations, for some unknown reason. Its sharp claws are its primary weapons.
Zangoose does not evolve.
Despite being a mongoose, it is known as the Cat Ferret Pokémon.
Despite having sharp claws, it is unable to learn Cut.
Although Zangoose and Seviper are enemies, they can breed due to being in the same egg group.
Before Generation IV, Zangoose was the only Pokémon to learn Crush Claw via level up.
Seviper is mentioned in every one of Zangooses Pokédex entries.
Considering the rivalry between Zangoose and Seviper, Zangoose's Ability, Immunity, could be a defense against Seviper's Poisonous attacks
In horde battles in X and Y if there is a Seviper in a group of Zangoose, they attack it first and not your Pokemon until it faints.