n.蜥蜴
The slow-worm is in fact not a snake but a legless lizard.
蛇蜥其实不是蛇，而是无脚的蜥蜴。
The lizard darted out its tongue at the insect.
蜥蜴伸出舌头去吃小昆虫.
But, of the vertebrates, unpredictable Nature selected only snakes ( and one lizard ).
但是, 在脊椎动物中, 神秘莫测的大自然只选择了蛇 ( 和一种蜥蜴 ).