松鼠不用教就能采集果实,把果实囤积起来过冬。春天出生的松鼠从来没有领略过寒冬,但是秋天一到,就可以看到它忙于采集果实,留待没有果实可采集的冬天享用。小鸟不用教就能筑巢,就能飞行,甚至能飞上数千里,飞越过茫茫大海。要解释这种现象,我们通常说动物有某种指引它的“本能”。分析一下这些本能你就能发现,它们帮助动物成功地适应环境。简而言之,动物有一种 Squirrels do not teach to be able to collect fruit, stocking the fruit over the winter. Squirrels born in spring have never had a taste of the winters, but as soon as autumn arrives, you can see that it is busy collecting fruits for winter without harvesting of fruits. Birds can nest without teaching, can fly, and even fly thousands of miles, flying over the vast sea. To explain this phenomenon, we usually say that animals have some “instinct” that guides them. By analyzing these instincts you can see that they help animals adapt to the environment successfully. In short, there is one animal