Even simple forms of social learning rely on intention attribution in marmoset monkeys (Callithrix jacchus)
Journal of Comparative Psychology (2012) - Comment
pubmed: 22103235  doi: 10.1037/a0026025  issn: 1939-2087  issn: 0735-7036 

Judith Burkart, Aleksandra Kupferberg, Stefan Glasauer, Carel Van Schaik