First Record of Bioacoustic Emission in Embryos and Hatchlings of Hawksbill Sea Turtles (Eretmochelys imbricata)

Recordings were made in nests of Eretmochelys imbricata and 107 samples of 10-min recordings revealed 575 sounds that were classified manually into 4 categories. Our results show that hawksbill turtles vocalize within the nest, especially during and after eclosion, which suggests vocalizations are important for communication among hatchlings to synchronize emergence from the nest.