Their forked tongues are used as organs of taste and smell and some species have sensory pits on their heads enabling them to locate warm-blooded prey.
ðɛɹ fˈɔːɹkt tˈʌŋz ɑːɹ jˈuːzd æz ˈɔːɹɡənz ʌv tˈeɪst ænd smˈɛl ænd sˌʌm spˈiːsiːz hæv sˈɛnsɚɹi pˈɪts ˌɔn ðɛɹ hˈɛdz ɛnˈeɪblɪŋ ðˌɛm tə loʊkˈeɪt wˈɔːɹmblˈʌdᵻd pɹˈeɪ.