These are unique ways for one species to interact with another. On occasion, a predatory cat, after killing an adult prey, adopts the prey's offspring for a few days; these cats are usually confused adolescent females, swirling with the start of those strange maternal urges. But there is certainly no other animal that puts costumes on members of another species on Halloween.

不同物种之间会有特殊的互动方式。有时猫在猎杀掉成年猎物时会把猎物的后代养育几天；这些猫通常是处在困惑时期的未成熟雌性，奇怪的母性冲动正处于萌芽状态。但绝对没有其他哪种动物会在万 节扮成其他物种。

A recent paper by Richard Topolski at George Regents University and colleagues, published in the journal Anthrozoos, demonstrates this human involvement with pets to a startling extent. Participants in the study were told a hypothetical scenario in which a bus is hurtling out of control, bearing down on a dog and a human. Which do you save? With responses from more than 500 people, the answer was that it depended: What kind of human and what kind of dog?

佐治亚摄政大学(George Regents)的理查德・托波尔斯基(Richard Topolski)及其同事最近在《人与动物》期刊(Anthrozoos)上发表的论文指出，人类与宠物的这种关系到了令人吃惊的程度。参与研究者被告知一种假设的情形：一辆巴士横冲直撞失去了控制，马上要压到一只狗和一个人，你会救哪个？在超过500多人的回应中，答案都是看情况而定：什么样的人和什么样的狗？

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