In the past, the argument that amphibians or reptiles were more susceptible to any chemical contamination than any land aquatic vertebrate was not supported by research until recently.
ɪnðə pˈæst, ðɪ ˈɑːɹɡjuːmənt ðæt æmfˈɪbiənz ɔːɹ ɹˈɛptaɪlz wɜː mˈoːɹ səsˈɛptᵻbəl tʊ ˌɛni kˈɛmɪkəl kəntˌæmᵻnˈeɪʃən ðɐn ˌɛni lˈænd əkwˈæɾɪk vˈɜːɾɪbɹˌeɪt wʌz nˌɑːt səpˈoːɹɾᵻd baɪ ɹᵻsˈɜːtʃ ʌntˈɪl ɹˈiːsəntli.