Iodine and T4 (over stimulate the spectacular apoptosis [programmed cell death] of the cells of the larval gills, tail and fins) also stimulate the evolution of nervous systems transforming the aquatic, vegetarian tadpole into the terrestrial, carnivorous frog with better neurological, visuospatial, olfactory and cognitive abilities for hunting.
ˈaɪədˌiːn ænd tˈiː fˈoːɹ ˌoʊvɚ stˈɪmjʊlˌeɪt ðə spɛktˈækjʊlɚɹ ɐpəptˈoʊsɪs pɹˈoʊɡɹæmd sˈɛl dˈɛθ ʌvðə sˈɛlz ʌvðə lˈɑːɹvəl ɡˈɪlz, tˈeɪl ænd fˈɪnz ˈɔːlsoʊ stˈɪmjʊlˌeɪt ðɪ ˌɛvəlˈuːʃən ʌv nˈɜːvəs sˈɪstəmz tɹænsfˈɔːɹmɪŋ ðɪ əkwˈæɾɪk, vˌɛdʒɪtˈɛɹiən tˈædpoʊl ˌɪntʊ ðə tɚɹˈɛstɹɪəl, kɑːɹnˈɪvɚɹəs fɹˈɑːɡ wɪð bˈɛɾɚ nˌʊɹɹəlˈɑːdʒɪkəl, vˌɪsjuːəspˈeɪʃəl, ɑːlfˈæktɚɹi ænd kˈɑːɡnᵻtˌɪv ɐbˈɪləɾiz fɔːɹ hˈʌntɪŋ.