% pubman genre = article @article{item_2632705, title = {{Reward of labor coordination and hunting success in wild chimpanzees}}, author = {Samuni, Liran and Preis, Anna and Deschner, Tobias and Crockford, C. ǂ and Wittig, Roman M.}, language = {eng}, issn = {2041-1723}, doi = {10.1038/s42003-018-0142-3}, publisher = {Nature Publishing Group}, address = {London}, year = {2018}, abstract = {{Cooperative hunting and meat sharing are hypothesized as fundamental to human life history{\textless}br{\textgreater}adaptations and biological success. Wild chimpanzees also hunt in groups, and despite the{\textless}br{\textgreater}potential of inferring ancestral hominid adaptations, it remains unclear whether chimpanzee{\textless}br{\textgreater}hunting is a cooperative act. Here we show support for cooperative acquisition in wild{\textless}br{\textgreater}chimpanzees since hunters are more likely to receive meat than bystanders, independent of{\textless}br{\textgreater}begging effort. Engagement in prey searches and higher hunt participation independently{\textless}br{\textgreater}increase hunting success, suggesting that coordination may improve motivation in joint tasks.{\textless}br{\textgreater}We also{\textless}br{\textgreater}fi{\textless}br{\textgreater}nd higher levels of urinary oxytocin after hunts and prey searches compared with{\textless}br{\textgreater}controls. We conclude that chimpanzee hunting is cooperative, likely facilitated by behavioral{\textless}br{\textgreater}and neuroendocrine mechanisms of coordination and reward. If group hunting has shaped{\textless}br{\textgreater}humans{\textless}br{\textgreater}{\textquoteright}{\textless}br{\textgreater}life history traits, perhaps similar pressures acted upon life history patterns in the{\textless}br{\textgreater}last common ancestor of human and chimpanzee.}}, journal = {{Communications Biology}}, volume = {1}, eid = {138}, }