Keith Tarvin, a behavioral ecologist at Oberlin College.

奥伯林学院的行为生态学家基思·塔文说到。

Tarvin's colleague Marie Lilly tested that ability by riding round town on her bicycle, stopping when she found a squirrel.

塔文的同事玛丽·莉莉测试了这种能力，她骑着自行车环绕城镇，发现松鼠就停下。

And being out and about all the time also means: " they're tasty morsels for a lot of different predators." Keith Tarvin, a behavioral ecologist at Oberlin College.

一直外出走动也意味着：“它们是许多不同的捕食者的美味佳肴。基思·塔文，欧柏林学院的行为生态学家。