But the bottleneck dolphins, which live in deep offshore waters, had empty stomachs, meaning that they could have been disoriented and were swimming for some time to reorient themselves.
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- 科学家经检查后发现,这些生活在深海地区的海豚,胃里面都是空的。这说明它们可能丧失了辨别方向的能力,并且已经游了一段时间,以便让自己再次确定方位。