南美亚马逊河水底下生活着千百种稀奇的水生动物,都在你吃我我吃它的食物链上生生不息。惟有一条两米长的黑色电蛇谁也不敢碰它,它游到哪儿,哪儿的小鱼儿就翻起肚子任它吃喝。它有天生厉害的武器——生物电流,连最凶恶的铁腭食人鱼见了它也躲得远远的。一天,它游到一个河马家庭 There are thousands of rare aquatic animals living under the Amazon River in South America. They live on the food chain where you eat me and eat it. Only a two-meter-long black snake did not dare to touch it. Where did it swim, where the little fish turned up and let it eat and drink. It has powerful weapons - biological currents, even the most ferocious iron piranhas see it also hide. One day, it swims to a Hippo family