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。”
"Perhaps numerous animals engage in these rituals, but we haven't been lucky enough to see them," Bekoff wrote in a Psychology Today report.
也许大量的动物搞这些仪式，但我们并没有被幸运地看到他们，“贝科夫中写道：今日心理学报告。”
Marc Bekoff, author of The Emotional Lives of Animals, Animals Matter, Animals at Play, and Wild Justice: The Moral Lives of Animals (with Jessica Pierce).
马克·哈特·考夫，动物的感情生活，动物的重要性，玩耍中的动物，野生正义：动物的道德生活(与杰西卡·皮尔斯合作)的作者。
"It's a great study and the first, I think, that really is really biologically relevant to wolves," meaning that it tests their natural propensities, says Bekoff.
贝科夫认为“这是一项伟大的研究，也是第一项真正关注狼类的生物学研究”，它考察了狼的自然习性。
Not only is more of the brain involved in play than was suspected, but it also seems to activate higher cognitive process, 'there is enormous cognitive involvement in play,' says Bekoff.
大脑的参与到玩耍中的部分比我们预想的要多，但是好像它也激发了更高级的思考过程。
Not only is more of the brain involved in play than was suspected, but it also seems to activate higher cognitive process, 'there is enormous cognitive involvement in play,' says Bekoff.
大脑的参与到玩耍中的部分比我们预想的要多，但是好像它也激发了更高级的思考过程。
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