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The Secret in the Food Train is four-volume picture-book style scientific series. One animal in one volume reveals the secrets of the food chain and the knowledge about the ecological system. Through simple and lively words and fresh and lovely pictures, the concepts of food chain, natural ecosystems and species extinction are no longer difficult to understand. Series focuses on the bees, sea otters, grey wolves and lemmings, corresponding to the grasslands, oceans, tundra and forest ecosystems. When they disappear, the food chain reaction begins, gradually breaking up the food chain and the ecosystem out of balance. Please view more details on each title.

《食物链中的秘密》丛书共4册，是一套绘本式科普书。以一种动物为主角，揭开食物链中的秘密，讲述大自然生态系统的知识。文字简洁活泼，图画清新可爱，让食物链，自然生态系统，物种灭绝这些深奥的词语不再那么难以理解。丛书主要介绍了蜜蜂、海獭、旅鼠和灰狼四种动物，对应草原、海洋、苔原和森林四种生态系统。当它们消失之后，连锁反应开始，食物链逐渐崩裂，生态系统失去平衡，在书中我们可以看见一个接一个暗淡下去的身影——每有一种植物或动物消失，图画中的它们便被抹成了黑色，象征着生命结束，生态系统的变化通过这种形式一目了然。详情请参阅每本书的简介.

Book Titles:
What If There Were No Grey Wolves? 如果世界上没有灰狼
What If There Were No Lemmings? 如果世界上没有旅鼠
What If There Were No Sea Otters? 如果世界上没有海濑
What If There Were No Bees? 如果世界上没有蜜蜂