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: 绍兴县| 日照市| 乐清市| 和林格尔县| 阜宁县| 丰镇市| 开江县| 黄山市| 宜州市| 保亭| 舞钢市| 哈密市| 通化县| 高安市| 拜泉县| 贵溪市| 江安县| 黄平县| 瓦房店市| 五原县| 尉犁县| 陇西县| 都江堰市| 小金县| 如东县| 黔东| 松滋市| 阿瓦提县| 隆回县| 霍林郭勒市| 高尔夫| 进贤县| 张家口市| 南召县| 荃湾区| 家居| 夏邑县| 三亚市| 儋州市| 万安县| 睢宁县|