1. crocodile   眼镜蛇   鳄鱼   草龟   乌龟   Hint Half-n-half Clue   2. rattlesnake   草龟   鳄鱼   响尾蛇   蛇   Half-n-half Clue   3. tortoise   鳄鱼   蜥蜴   草龟   眼镜蛇   Half-n-half Clue   4. snake   蛇蝎   鳄鱼   乌龟   蛇   Half-n-half Clue   5. lizard   眼镜蛇   响尾蛇   蜥蜴   python   Half-n-half Clue   6. turtle   蛇   鳄鱼   python   乌龟   Half-n-half Clue   7. viper   变色蜥蜴   python   蛇蝎   蛇   Half-n-half Clue