SSS 2011-07-20
时间：2018-12-24 作者：英语课 分类：Scientific American(七)月
英语课
This is Scientific American 60-second Science. I'm Christopher Intagliata. Got a minute? Hey, four eyes.
Let playground tongue more accurate when it applied 1 Anableps anableps, a fish related to the garbe. It lives in the blackish water of mangoswan in central of South America in hunts for food of the water surface. Its bozing eyes submerged half way which poses revolution problems. Should those eyes be attuning 2 the greenish light drifting the mango, or the yellowish ray drifting up through murky 3 water? Well, these fish eyes see both.
Anableps doesn't actually has four eyes, just the usual two. But each eye has two pupils, one above water, one below. And each pupil sends incoming visual inform of the different side of the fish's retina. Coming each of the retina adapted produces different light filtering pigments 4. So c.. under water ray is primate 5 sense a longer way from yellow light. C.. by daily a sense of the short way from green light. The finding appears on a journal biology letters.
The entire arrangement makes it easy for this bifocal fish just spot attested 6 above from above water or bet it voyage below. For when it comes revolution, the eye's habit.
Thanks for the minute for Scientific American 60-s Science. I'm Christopher Intagliata.
1 applied
adj.应用的；v.应用，适用
- She plans to take a course in applied linguistics.她打算学习应用语言学课程。
- This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
3 murky
adj.黑暗的，朦胧的；adv.阴暗地，混浊地；n.阴暗；昏暗
- She threw it into the river's murky depths.她把它扔进了混浊的河水深处。
- She had a decidedly murky past.她的历史背景令人捉摸不透。
4 pigments
n.（粉状）颜料( pigment的名词复数 )；天然色素
- The Romans used natural pigments on their fabrics and walls. 古罗马人在织物和墙壁上使用天然颜料。 来自辞典例句
- The original white lead pigments have oxidized and turned black. 最初的白色铅质颜料氧化后变成了黑色。 来自辞典例句