Some reptiles become birds, some mammals become primates, some primates become monkeys with tails, and others become the great apes, including a variety of human species.
Unele reptile au devenit păsări,  unele mamifere au devenit primate, unele primate au devenit maimuțe cu coadă, iar altele au devenit maimuțe fără coadă,  incluzând o varietate de specii umane.