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 .