【英语时差8,16】为何蛇类舌头分叉-下

The key here-with both ears and eyes-is that your brain combines two different perspectives to make a more detailed¹, three-dimensional whole. Because you have two separate eyes and two separate ears, you can see and hear in stereo. When a snake’s tongue flicks³ out, the two tines of the fork spread as wide as they can. The tines flick² back into the snake’s mouth, and whatever chemicals each tine encountered in the environment are delivered to the snake’s two, separate vomeronasal organs on the roof of its mouth. This gives the snake a directional perspective on the chemical traces in its environment-a kind of stereo smell. Like your two ears help you identify which direction a sound comes from, the two tines of a snake’s tongue tell the snake whether its prey⁴ ran left or right.

 

1 detailed   

adj.详细的，详尽的，极注意细节的，完全的

参考例句：

• He had made a detailed study of the terrain.他对地形作了缜密的研究。
• A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。

2 flick   

n.快速的轻打，轻打声，弹开；v.轻弹，轻轻拂去，忽然摇动

参考例句：

• He gave a flick of the whip.他轻抽一下鞭子。
• By a flick of his whip,he drove the fly from the horse's head.他用鞭子轻抽了一下，将马头上的苍蝇驱走。

3 flicks   

（尤指用手指或手快速地）轻击( flick的第三人称单数 )； （用…）轻挥； （快速地）按开关； 向…笑了一下（或瞥了一眼等）

参考例句：

• 'I shall see it on the flicks, I suppose.' “电影上总归看得见。” 来自英汉文学
• Last night to the flicks. 昨晚看了场电影。 来自英汉文学

4 prey   

n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨

参考例句：

• Stronger animals prey on weaker ones.弱肉强食。
• The lion was hunting for its prey.狮子在寻找猎物。