犬科动物的社会交流：一种刻板的哺乳动物展示的进化证据。
Social communication in canids: evidence for the evolution of a stereotyped Mammalian display.
出版信息
Science. 1977 Sep 9;197(4308):1097-9. doi: 10.1126/science.197.4308.1097.
Abstract
The variability in the duration and form of the canid play bow was studied in infant coyotes, wolves, wolf-dog hybrids, beagles, and adult free-ranging dogs. Both duration and form showed marked stereotypy. It appears that the role of this context-specific social signal in the communication of play intention has been fostered by selection for "morphological" stereotypy.
摘要
本研究对幼豺狼、狼、狼狗杂种、比格犬和自由放养的成年犬的犬科玩耍弓的持续时间和形式的可变性进行了研究。持续时间和形式都表现出明显的刻板性。看来，这种特定于情境的社会信号在玩耍意图的交流中的作用是通过选择“形态”刻板性而得到促进的。
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