Limbless scaly elongate reptile ; some are venomous .
无腿有鳞细长的爬行动物；一些是有毒的。
It 's one explanation for why humans no longer have tails , birds and turtles are toothless and snakes have stayed limbless .
这也能解释为什么人类再没有尾巴，鸟类和龟类不再长牙齿，蛇也不再长脚。
Makhmalbaf adapts the volatile terrain to his story , such as in a harrowing and memorable scene set in a medical camp populated by limbless mine explosion victims .
Exactly why these limbless reptiles take to the air in the first place is not known , but their fellow gliders do so to travel more efficiently , pursue prey or evade predation .
Millions of people the world over suffer from a fear of snakes , and even those who don 't may kill the limbless reptiles on sight , fearing for the safety of their pets or children .
