The main poison-producing glands, the parotoids, produce the neurotoxin bufotoxin and are located behind the ears of toads, along the backs of frogs, behind the eyes of salamanders and on the upper surface of caecilians.
ðə mˈeɪn pˈɔɪzənpɹədˈuːsɪŋ ɡlˈændz, ðə pˈæɹoʊtˌɔɪdz, pɹədˈuːs ðə nˈʊɹɹoʊtˌɑːksɪn bjˈuːfətˌɑːksɪn ænd ɑːɹ loʊkˈeɪɾᵻd bᵻhˌaɪnd ðɪ ˈɪɹz ʌv tˈoʊdz, ɐlˈɔŋ ðə bˈæks ʌv fɹˈɑːɡz, bᵻhˌaɪnd ðɪ ˈaɪz ʌv sˈælɐmˌændɚz ænd ɔnðɪ ˌʌpɚ sˈɜːfɪs ʌv kiːsˈɪliənz.