1.为什么大象长着一个长鼻子?大象的鼻子很有用,除了可以用来呼吸、闻气味、吸水洗澡之外,还可以用来探路、当武器及搬运工具。由于大象的鼻子用处很多,经过几千年的进化,就变得像今天这样长了。2.为什么狮子常常在睡觉?狮子在捕食时需要消耗很多体力,为了积聚足够的精力去猎食,狮子平时就会长时间地躺下来睡觉。3.为什么鱼在冰冷的水中不怕冷?鱼属于变温动物。鱼的体温是随着周围环境温度的变化而变化的。因此,鱼在冰冷的水里生 1. Why the elephant has a long nose? The elephant’s nose is very useful, in addition to breathing, smelling, absorbing water and bathing, it can also be used to explore the road, as weapons and handling tools. As the elephant’s nose has many uses, after thousands of years of evolution, it has become as long as it is today. 2. Why lions often sleep? Lions need a lot of physical strength to prey, in order to accumulate enough energy to hunt, the lions will usually lie down for a long time to sleep. 3. Why fish in cold water are not afraid of cold? Fish are warm-blooded animals. Fish’s body temperature changes with the temperature of the surrounding environment. So fish are born in the icy water