如何让貂快乐

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根据今天发表在《自然》杂志上的一份报告,尽管在人工饲养了70代,但农场饲养的貂仍然渴望游泳。这些发现可能会影响人们对待为人类使用而饲养的动物的方式。

评估动物福利并非易事,尤其是在评估生物的主观体验时。但牛津大学的 Georgia J. Mason 和她的同事们通过研究貂为了获得玩具、替代巢穴和水池等东西愿意付出多大的努力,成功地做到了这一点。结果表明,貂最珍视的是水池。此外,当研究人员阻止貂进入水池并在 24 小时后测量貂尿液中应激激素皮质醇的水平时,他们发现皮质醇的产生增加了 50%——这一增幅与同期食物剥夺引起的增幅没有区别。

布里斯托大学的 Michael Mendl 在对该报告的评论中指出,将 Mason 小组采用的技术应用于其他圈养动物,应该能够使科学家们决定,剥夺它们的资源和本能行为的机会是否会导致沮丧和压力。“如果是这样,那么为它们提供这些资源和机会的科学论据将是强有力的,并且应该成为改变饲养条件的决定的基础,即使这些决定不可避免地会受到政治、经济和实际决定的影响。”

Kate Wong is an award-winning science writer and senior editor at 大众科学 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

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