The bones of mammals are well ossified and their teeth, which are usually differentiated, are coated in a layer of prismatic enamel.
ðə bˈoʊnz ʌv mˈæməlz ɑːɹ wˈɛl ˈɑːsᵻfˌaɪd ænd ðɛɹ tˈiːθ, wˌɪtʃ ɑːɹ jˈuːʒuːəli dˌɪfɚɹˈɛnʃɪˌeɪɾᵻd, ɑːɹ kˈoʊɾᵻd ɪn ɐ lˈeɪɚɹ ʌv pɹɪsmˈæɾɪk ɪnˈæməl.