除南极洲以外,各大洲都有蜥蜴的踪迹。许多生活在热带雨林。那里有丰盛的食物。炎热潮湿的气候使他们能够保持自己的体温。在沙漠等炎热干燥的地方也有它们的身影。许多沙漠蜥蜴是夜间活动。他们在凉爽的傍晚出来。他们无法适应炎热的天气。生活在寒冷的气候下的蜥蜴通过冬眠越冬。他们的身体不能耐受寒冷的气温。另外,在冬天食物并不容易获得。
Some lizards are carnivores and some are herbivores. Large carnivores like the Komodo dragon will eat anything they can find. They need a lot of food so will hunt bigger prey, like deer and cattle. Gila monsters are also rather large lizards. They usually look for baby birds and mice. They bite their prey. Poison flows from their mouths into the wound. Gila monsters are the only venomous lizards in the United States. Smaller carnivores eat insects, other lizards and small animals. Herbivores eat leaves, fruit, flowers and other plants. They can more easily obtain food. They don't have to hunt or wait in hiding like the carnivores.
有些蜥蜴是食肉动物,有些是食草动物。像科莫多巨蜥大型食肉动物会吃任何可以找到的东西。他们需要大量的食物,所以会寻找更大的猎物,如鹿和牛。毒蜥也是相当大的蜥蜴。他们通常寻找雏鸟和老鼠。他们咬住猎物。毒液从他们口中流入猎物的伤口。毒蜥是美国境内唯一有毒的蜥蜴。小型食肉蜥蜴吃昆虫,其它蜥蜴等小动物。食草动物吃树叶,水果,花卉等植物。他们更容易地获取食物。他们不需要像食肉动物那样去打猎或隐藏等待猎物。
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