例如，他们很快就能识别出与飞蛾有关的回声，飞蛾是蝙蝠的常见猎物，尤其是扑打翅膀的飞蛾。
For example, one echo they quickly identify is the one they associate with a moth, which is common prey for a bat, particularly a moth beating its wings.
要知道，虽然蝙蝠和鸟类利用翅膀飞行的原理都一样，然而它们的翅膀却是沿着不同道路进化而来的。不同动物的识数能力也可能是在各种不尽相同的情况下分别进化出来的。
Just as bat and bird wings evolved separately yet work using the same fundamental principles, numerical representation may have developed in many separate instances.
科学家们长期以来一直认为，蝙蝠与鸟及昆虫的飞行方式是一样的，即以僵硬的、机翼似的、铰链般长在肩上的翅膀进行飞行。
Scientists have long assumed that bats fly the same way as birds and insects do ---with rigid, airplane-like wings that hinge at the shoulder.
蝙蝠的翅膀和人类的手臂是相应的。
蝙蝠的翅膀和鼠的前腿是同源的。
The wing of a bat and the foreleg of a mouse are homologous .
蝙蝠的翅膀是由一层薄薄的皮肤组成，伸展开有四个长指头长，前面有一个短小的大拇指，前端有爪子。
A bat's wing consists of a thin layer of skin that stretches across four long fingers. And there is a little thumb at the front with a claw on it.
电梯拖动的比例，一个典型的蝙蝠的翅膀是约6.8相比，这一个鸽。
The lift-drag ratio of a typical bat's wing is about 6.8, comparable to that of a pigeon.
蝙蝠侠用他的“翅膀”抓住了坏蛋，可是它却没有像真蝙蝠那样用牙齿打败自己的猎物。他用的是蝙蝠飞镖或其它蝙蝠式装备。
Batman catches bad guys in his "wings", but he does not use teeth to defeat prey like some real bats do. He USES Batarangs or other batty devices.
第一个从铁塔上跳下自去的是一位名叫Reichelt的裁缝，他为自己缝制了一个蝙蝠翅膀的衣服，他以为自己能飞起来，但是很遗憾，他没有成功地飞起来。
The first jumped from the tower to go from a tailor named Reichelt, who sew their own clothes and wings of a bat, and he thought he could fly, but unfortunately, he did not fly successfully.
蝙蝠侠用他的“翅膀”抓住了坏蛋，可是它却没有像真蝙蝠那样用牙齿打败自己的猎物。他用的是蝙蝠飞镖或其它蝙蝠式装备。
Batman catches bad guys in his "wings", but he doesn't use teeth to defeat prey like some real bats do. He USES Batarangs5 or other batty6 devices.
鸟和蝙蝠是借助于其翅膀里面的关节和肌肉飞行的。
Birds and bats fly with the help of joints and muscles inside their wings.
一只吸血蝙蝠拍动着翅膀从夜空中飞回来，身上满是鲜血。他停在洞顶准备休息。
A vampire bat came flapping in from the night covered in fresh blood and parked himself on the roof of the cave to get some sleep.
一只吸血蝙蝠拍动着翅膀从夜空中飞回来，身上满是鲜血。他停在洞顶准备休息。
A vampire bat came flapping in from the night covered in fresh blood and parked himself on the roof of the cave to get some sleep.
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