它们的祖先与微型蝙蝠的祖先不同。
微型蝙蝠利用视觉进行超出回声定位范围的长距离飞行。
Vision is used by micro bats to travel over long distances beyond the range of echolocation.
第二类被称为“微型蝙蝠”,体型较小,主要以昆虫为食。
The second group, called micro bats, are smaller in size and mostly eat insects.
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