human, science and nature, the three phase was quoted rates are inseparable. the wonders of nature, a little thing, through the baptism of the time, and meticulous observation, often can give a person with enlightenment.

vast forests, sunshine give plants grace, to be able to get the nutrients and thrive. such as the morning sun open the eyes of animals, everything is ready. squirrels, squirrel, embarks from the house, looking for full sweet red pine nuts, all kinds of plant seeds and slowly by seeding them to other places. while the weasel feed on smaller herbivores, sable and then ate the weasel... as if people eat the big fish, big fish eat small fish, small fish eat shrimp, shrimp eat plankton, interlocking between races, interdependence restricts each other.

foreign scientists have done an experiment: introduce the sheep in a rare nature reserve, where the bamiyan, natural environment is superior, and there is special personnel to the group of kids to their natural enemies, wolf, moved to another place. so the sheep started in the breeding. until grass and low shrubs are eaten, the number of sheep instead of less. because they live too comfortable, there is no enemy attack, the number that is too carefree life let their constitution also fell. then the scientists tried to introduce wolves again. the result is in the relationship between predator and prey, good robust species to survive, wolves eat sick defect part. natural selection and evolution, has been the nature and even the survival of human society the same criteria.

cut down some trees, is to destroy a part of birds and insects; killing of bees, small fish, can also cause cannot spread pollen, fish cannot reproduce problem... sabotaged a part of the food chain, will bring ill-defined disaster. because in front of the natural fair, each species, each independent inspanidual organisms is so beautiful and full of value.

because of the spanersity of species and colorful nature. want to live in harmony with her and get the kind of treatment, will be good to nature, to understand the nature, and have good at discovering and innovative mind.

人类、科学、自然，这三者相生相息密不可分。大自然的奇妙之处在于：一件小小的事物，经过时间的洗礼以及细致入微的观察，往往能给人以启示。

广袤的森林中，阳光雨露给予植物恩泽，使其能够得到养料然后茁壮成长。等清晨的阳光掀开动物们的眼睛，一切也准备好了。松鼠、灰鼠从居所里出发，寻找饱满香甜的红松子，各种植物的种子于是慢慢的被他们带到其他的地方落地生根。而此时黄鼠狼以体型较小的草食动物为食，紫貂继而吃掉了黄鼠狼……就好像人吃大鱼，大鱼吃小鱼，小鱼吃虾米，虾米又吃浮游生物一样，各种族之间环环相扣，相互依存相互制约着。

外国的科学家曾做过一个实验：将一种稀有的羊引进自然保护区，那里水草丰美，自然环境优越，并且还有专门的人员为这群天之骄子将她们的天敌——狼，迁往另外的地方。于是羊群开始在此生息繁衍。直到草和低矮的灌木被吃光了，羊群的数量反而越来越少。原来是因为它们生活的太过安逸，没有天敌进犯，数量过于膨胀，太过悠闲的生活让它们的体质也下降了。后来科学家们尝试着再一次引进狼群。结果是在捕食者与猎物的关系中，健壮优良的品种得以存活，狼群则吃掉病弱残疾的部分。物竞天择，优胜劣汰，一直都是自然界乃至人类社会不变的生存准则。

砍掉了某种树林，就等于灭绝了一部分鸟类、昆虫;捕杀蜜蜂、幼小鱼类，也会造成花粉无法传播，鱼群无法繁衍的问题……大肆破坏生物链中的某一环，都会带来难以言说的灾难。因为在公平的自然面前，每个物种，每个独立的生物个体都是如此的美丽而富有价值。

大自然因为物种的多样性而五彩缤纷。想要与她和谐相处并得到其慈祥的对待，就要善待自然，了解自然，并拥有一刻善于发现与创新的心。