Edited by Bekoff, who says it will finally "legitimize" research on animal emotions.
柏柯夫担任此书编辑，他认为这将最终“认可”动物情感的研究。
"It is a complete mystery," said Marc Bekoff, a University of Colorado professor who specialises in animal behaviour.
“这完全让人费解”，科罗拉多大学教授、动物行为研究专家马克·贝科夫说道。
"That is a clear difference between dogs and wolves, " says Marc Bekoff, a cognitive ethologist at the University of Colorado, Boulder.
博尔德市科罗拉多大学的认知动物行为学家马克•贝科夫认为“这是狗和狼的明显区别。”
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