日韩午夜精品视频,欧美私密网站,国产一区二区三区四区,国产主播一区二区三区四区

 

Top 10 animals with incredible vision

By Xu Lin
0 Comment(s)Print E-mail China.org.cn, April 5, 2014
Adjust font size:


Crocodile





An ancient animal, the crocodile is regarded a "living fossil." It also has a pair of highly evolved eyes. Thanks to their unique location, the eyes can reach above the water surface even when the head stays under. Endowed with very good night vision, this creature is a nocturnal hunter. It has vertical-slit shaped pupils, similar to domestic cats, which can exclude light more effectively than circular pupils, helping protect its eyes during daylight. The tapetum lucidum -- something like a mirror -- on the rear wall of the eyes can reflect incoming light back onto the retina, which best utilizes the smallest amount of light available at night.

<  1  2  3  4  5  6  7  8  9  10  >  


Follow China.org.cn on Twitter and Facebook to join the conversation.
ChinaNews App Download
Print E-mail Bookmark and Share

Go to Forum >>0 Comment(s)

No comments.

Add your comments...

  • User Name Required
  • Your Comment
  • Enter the words you see:   
    Racist, abusive and off-topic comments may be removed by the moderator.
Send your storiesGet more from China.org.cnMobileRSSNewsletter
主站蜘蛛池模板: 吴堡县| 内乡县| 芷江| 涞水县| 台安县| 新巴尔虎左旗| 洛隆县| 邵武市| 玛多县| 漾濞| 孙吴县| 绩溪县| 农安县| 景德镇市| 宁波市| 响水县| 奎屯市| 衡东县| 章丘市| 临潭县| 湖南省| 弥勒县| 梅河口市| 棋牌| 惠东县| 天津市| 连江县| 隆昌县| 迁安市| 涞水县| 石嘴山市| 宿迁市| 上蔡县| 怀集县| 于田县| 昭觉县| 化州市| 丹东市| 合川市| 茂名市| 那曲县|