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Title: A wild Indo-Pacific bottlenose dolphin adopts a socially and genetically distant neonate
Authors: Sakai, Mai
Kita, Yuki F.
Kogi, Kazunobu
Shinohara, Masanori
Morisaka, Tadamichi
Shiina, Takashi
Inoue-Murayama, Miho
Author's alias: 村山, 美穂
Issue Date: 6-Apr-2016
Publisher: Nature Publishing Group
Journal title: Scientific Reports
Volume: 6
Thesis number: 23902
Abstract: Alloparental behaviour and adoption have been reported in many mammals and birds. Such behaviours are energetically costly, and their causes and functions remain unclear. We observed the adoption behaviour of a wild Indo-Pacific bottlenose dolphin (Tursiops aduncus) near Mikura Island, Japan. A calf was seen with its mother on six observation days. Following the mothers death, the calf was observed with a sub-adult female on all 18 observation days from May to September 2012. On three days, the calf was observed swimming with this female in the suckling position and milk was seen leaking from the females mammary slit. A five-year dataset revealed no significant social or kin relationships between the biological mother and allomother, indicating that kinship and social relationships did not play an important role in the observed adoption.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
DOI(Published Version): 10.1038/srep23902
PubMed ID: 27049937
Appears in Collections:Journal Articles

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