在实验中，社交机器鼠跟随生物鼠四处走动，与它们玩同样的玩具，还会打开笼门让被困的老鼠逃走。
During the experiment, the social robot rat followed the living rats around, played with the same toys, and opened cage doors to let trapped rats escape.
这只转基因鼠小弟名叫荷比-杰。通过使控制其神经元传输的基因过表达，它走迷宫和记忆玩具的能力得到了极大的提升。
The genetically engineered rat, Hobbie-J, over-expresses a gene that regulates neuron communication, greatly enhancing the rat's ability to navigate mazes and remember toys.
在研究期间，和那些总是呆着不动的小鼠相比，有更多伙伴、更大空间和更多玩具的实验鼠减肥效果更明显。
Those who lived alongside a greater number of mice, had more space and toys to stimulate them lost far more weight over the course of the study than their 'couch potato' counterparts.
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