ðeɪ lˈɪv fɔːɹ vˈɛɹi lˈɔŋ bˌʌt fˈaɪnaɪt pˈiəɹɪədz ʌv tˈaɪm, ɹˈeɪndʒɪŋ fɹʌm θˈaʊzəndz tʊ æt lˈiːst bˈɪliənz ʌv jˈɪɹz.
They live for very long but finite periods of time, ranging from thousands to (at least) billions of years.