△在所有大个猛兽中,狮子的心脏最小。△蜘蛛的血压和人一样高。△海豚有96只牙,但总把食物整个吞下。△蛇蜕皮时,[睛软皮也蜕一层。△抹香鲸潜水前,总要先作60—70次“深呼吸”。△动物的脂肪大多是蛋黄色,唯独鳄鱼脂肪是绿色的。△麻雀虽小,但它颈上的骨头数目几乎比长颈鹿多 △ In all big beasts, the lion’s heart is the smallest. △ spider’s blood pressure is as high as humans. The dolphins have 96 teeth, but they always swallow the whole food. When △ snake skin, [the soft skin is also a layer. △ Sperm whale before diving, always make 60-70 times “deep breath.” △ Most of the animal fat is egg yellow, but crocodile fat is green. Although the sparrow is small, the number of bones on its neck is almost more than that of the giraffe.