Do you know any animals with genetic variation in the world?

Hell Three-headed Dog, nine head worm, Baban Serpent, Miki Yang Jian, Three-headed and Six-armed Nezha, Xingtian, Zombie Tyrannosaurus Rex, Red Tyrannosaurus Rex, Imperial Water Army Huang Lei (whose strength was greatly increased due to the variation caused by the resurrection after the death of Phoenix), Black Lugia, fallen angels, Vampire, brolly, Flo King Kong, and Reincarnation Fox (time is limited, send these first, and the rest will be commented by netizens).