Pheru were a species of animal favored by prehistoric Humans and San 'Shyuum as pets. Originating from Faun Hakkor,[1] they were the vectors of the first Flood outbreak in the Milky Way galaxy; they were injected with the Flood powder that was found, and after many generations this 1/3 of Pheru with the organic powder began sporting tentacles, they then began to eat other Pheru. Humans became infected by the Pheru, due to the Pheru being consumed as a delicacy among both human and San 'Shyuum. 



  1. Halo: Cryptum, page 131