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 .

马将充斥爆炸的地域引入到他的故事当中，比如在医疗营难忘而痛苦的场景，那里聚集着因地雷爆炸而失去肢体的受害者。

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 .

这些无翼爬行动物一开始为什么要飞还不得而知，不过其他动物滑行无非是为了行动更省力，捕捉猎物或逃避追捕。

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 .

世界上有太多人害怕蛇，就算不害怕，也有很多人一看蛇就会立马杀死，害怕蛇会威胁到宠物或者孩子的安全。