ðɛɹ pˈɜːməbəl skˈɪn ɐbsˈoːɹbz tˈɑːksɪnz wˌɪtʃ ɐfˈɛkts ðɛɹ nˈɜːvəs ænd mˈʌskjʊlɚ sˈɪstəmz ænd ˈʌltᵻmətli lˈiːdz tə dˈɛθ; mˌeɪkɪŋ ðˌɛm hˈaɪli sˈɛnsᵻtˌɪv tə wˈɔːɾɚ pəlˈuːʃən.
Their permeable skin absorbs toxins which affects their nervous and muscular systems and ultimately leads to death; making them highly sensitive to water pollution.