谁能给我找一篇关于介绍"海豚"的
Porpoise each embryo only produces, the gestation period 10-11 month。 When young porpoise birth, the tail first leaves, because if first leaves, can have the danger which is drown to death。 The young porpoise just a birth, the mother then promoted it the water surface to breathe the first air。 ...全部
Porpoise each embryo only produces, the gestation period 10-11 month。 When young porpoise birth, the tail first leaves, because if first leaves, can have the danger which is drown to death。
The young porpoise just a birth, the mother then promoted it the water surface to breathe the first air。
The porpoise is the extremely intelligent animal, many scientists believed, porpoise's intelligence surpasses the ape, some people suspected, the humanity is comes by the porpoise evolution, because the person and the porpoise all have more fat, but ape and monkey then are very few。
The porpoise happy knot team roams, the speed may amount to above 40 kilometers, they dive not deeply, the diving time cannot surpass 10 minutes。
Their personality temperate, the memory is strong, take the fish, the shrimp and so on as the food。
The porpoise can be intimate with the humanity, and also firmly can be saved person's fact。
海豚每胎只产一只,孕期10-11个月。
幼海豚出生时,尾先出,因为如果头先出,就会有溺死的危险。幼海豚刚一出生,母亲便把它推出水面呼吸第一口空气。海豚是非常聪明的动物,不少科学家认为,海豚的智力超过猿,更有人猜想,人类是由海豚进化而来,因为人和海豚都有较多的脂肪,而猿和猴则很少。
海豚喜结队漫游,时速可达40公里以上,它们潜水不深,潜水时间也不会超过10分钟。它们性情温和,记忆力强,以鱼、虾等为食。海豚能够亲近人类,并且也确有救人的事迹。
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