The Secret of the
Food Train Series 食物链中的秘密系列
What If There Were No
Grey Wolves? 如果世界上没有灰狼
Deciduous forest ecosystems can be found on nearly every
continent. Countless animals and plants live in them. So what difference could
the loss of one animal species make? Follow the chain reaction, and discover
how important gray wolves are.
森林生态系统几乎存在于在每个大陆上。数不清的动物和植物都生活在森林里。那么，一种动物的消失，究竟会给森林带来怎样的变化呢？翻开《食物链中的秘密：如果世界上没有灰狼》，看看“冷血杀手”大灰狼到底有多重要！
What If There Were No
Lemmings? 如果世界上没有旅鼠
The tundra ecosystem is vast, covering a large part of the
far north. Countless animals and plants live there. So what difference could
the loss of one animal species make? Follow the chain reaction, and discover
how important lemmings are.
苔原生态系统非常庞大，北极大部分地区都是苔原。数不清的动物和植物生活在苔原上。那么，一种动物的消失，究竟会给苔原带来怎样的变化呢？翻开《食物链中的秘密：如果世界上没有旅鼠》，看看机灵的小旅鼠到底有多重要！
What If There Were No
Sea Otters? 如果世界上没有海濑
The ocean ecosystem is huge, covering most of our planet.
Countless animals and plants live there. So what difference could the loss of
one animal species make? Follow the chain reaction, and discover how important
sea otters are.
海洋生态系统很庞大，因为海洋占地球面积的71％数不清的动物和植物生活在海洋中。那么，一种动物的消失，究竟会给海洋带来怎样的变化呢？翻开《食物链中的秘密：如果世界上没有海濑》，看看可爱的胖海獭到底有多重要！
What If There Were No
Bees? 如果世界上没有蜜蜂
Grassland ecosystems can be found on nearly every continent.
Countless animals and plants live in them. So what difference could the loss of
one animal species make? Follow the chain reaction, and discover how important
honey bees are.
草原生态系统几乎存在于每个大陆上。数不清的动物和植物都生活在草原上。那么，一种动物的消失，究竟会给草原带来怎样的变化呢？翻开《食物链中的秘密：如果世界上没有蜜蜂》，看看“劳动模范”小蜜蜂到底有多重要！