the bones of the ears in mammals are homologous to what in lizards
Evolution of mammalian auditory ossicles The evolution of mammalian auditory ossicles was an evolutionary event in which bones in the jaw of reptiles were co-opted to form part of the hearing apparatus in mammals. The event is well-documented[1] and important[2][3] as a demonstration of transitional forms and exaptation, the re-purposing of existing structures during evolution.[4]