ðə mˈeɪɾɪŋ sˈaɪkəl ʌv nˈɜːs ʃˈɑːɹks ɪz baɪˈɛnɪəl, wɪð fˈiːmeɪlz tˈeɪkɪŋ ˌʌp tʊ ˈeɪtiːn mˈʌnθs tə pɹədˈuːs ɐ nˈuː bˈætʃ ʌv ˈɛɡz.
The mating cycle of nurse sharks is biennial, with females taking up to 18 months to produce a new batch of eggs.