Species There's 1 Species of koala, but scientists disagree whether you'll find sub-species. The commonest three sub-species of koalas are looked upon as: Phascolarctos cinereus adustus Koalas are marsupials, and like a number of other marsupials, they have their youthful joeys in pouches. The pouch shields joeys from harm even waiting for link from Article Directories (16)