描写蓝鲸的英语句子

The whale is the life in the sea mammal. Some whale bodies very big,the biggest body is long may amount to 30 meters. Whale's build likesthe fish, assumes 梭形. Forehead big, the eye is small, the helixcompletely degenerates. The pate is not obvious. The foreleg assumesthe fin shape, the latter extremity completely degenerates; The mosttypes carry on the back have the fin; The tail assumes the horizontalfin shape, is the main movement organ. Has the tooth or does not havethe tooth. The nostril one or two, open in the top of the head. Theadult whole body did not have the wool (to have many types only stillto preserve some wools nearby mouth). Under the skin has thick fat,may keep warm and reduce bodily the proportion. With the lung breath,namely dives into in the water after the water surface inspiration,may dive swims 10 ~ 45 minutes. Generally take the zooplankton, themollusk and the fish as the food. 胎生, the usual each embryoproduces a young, to the milk nurtures the young whale