In a second experiment, the researchers tested the Wolf pups to determine whether they would follow the gaze of a person as she stood staring at a spot on the other side of a low wall.
在第二项实验中，研究者们希望了解当人的注视点在一堵矮墙后面时，狼崽是否还会追随人的视线。
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So if a scientist wanted to study the microorganisms living on each side of a temperature gradient, the AUV would find the boundary, follow it, and pick the best spot to take samples.