鲸鱼苦心育后代鲸鱼是世界上最大的动物，其中个体最大的蓝鲸，体重可达一百九十吨，几乎相当部队一个军的人的总重量。如果用载重量为四吨的卡车拖拉，那么就需要四十六辆半。鲸鱼一生遨游在海洋里，它属于哺乳类，是靠肺呼吸的，必须常常升出海面换气。当肺部吸进大量空... Whales painstaking offspring whales is the largest animal in the world, of which the largest individual blue whales, weighing up to 190 tons, almost the equivalent of the total weight of a force of troops. If you use a truckload of four tons of tow, then you need forty-six and a half. Whale life travel in the ocean, it belongs to mammals, is to rely on the lungs to breathe, and must often rise out of the sea to ventilate. When the lungs inhaled a lot of empty ...