He kīrehe e whai tuaiwi ana. He whai tuaiwi te ika, te ika-oneone, te ngāngara, te manu, te whāngote, me tātou te tangata. Ko te nuinga o ngā momo kīrehe (97%) he tuaiwi-kore (arā, kāore ō rātou tuaiwi). Hei tauira, ko te noke, ko te kōura, ko te wētā.
Any species from the animal kingdom with a backbone. Vertebrates include fish, amphibians, reptiles, birds, and mammals, including humans. Most species of animals (97%) are invertebrate (i.e. do not have a backbone), such as the worm, the crayfish and the wētā.