Parent–offspring communication in the Nile crocodile Crocodylus niloticus: do newborns’ calls show an individual signature?

  title={Parent–offspring communication in the Nile crocodile Crocodylus niloticus: do newborns’ calls show an individual signature?},
  author={Am{\'e}lie L. Vergne and Alexis Avril and Samuel Martin and Nicolas Mathevon},
Young Nile crocodiles Crocodylus niloticus start to produce calls inside the egg and carry on emitting sounds after hatching. These vocalizations elicit maternal care and influence the behaviour of other juveniles. In order to investigate the acoustic structure of these calls, focusing on a possible individual signature, we have performed acoustic analyses on 400 calls from ten young crocodiles during the first 4 days after hatching. Calls have a complex acoustic structure and are strongly… 
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