精确的是这种声纳观察世界的方法，蝙蝠可以通过大小、形状和纹理来辨别像蚊子这样的小东西。
Precise is this sonar view of the world that bats can distinguish by size, shape, and texture something as small as a mosquito.
“看起来，它们可以辨认出不同形状的鱼鳍，这意味着他们能辨别出不同的鱼类。”他这么告诉BBC新闻频道。
"They seem to be able to discriminiate between different shapes, which might even mean they discriminate between different species of fish," he told BBC News.
McCollough查找了整个目录，在基于鲸鱼们各自截然不同的形状、颜色、斑纹的基础上，她培养出了一种辨别座头鲸的技能。
McCollough scoured the catalogue and developed an expertise for identifying humpbacks based on their distinct shape, color and markings.
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