![](/img/cover-not-exists.png)
Yawning, scratching, and protruded lips: Differential conditionability of natural acts in pigtail monkeys (Macaca nemestrina)
Moutou Louboungou, James R. AndersonVolume:
28
Language:
english
Pages:
9
DOI:
10.1007/bf02381019
Date:
July, 1987
File:
PDF, 570 KB
english, 1987