“海中狼”——鲨鱼

• 作 者: 王晟成
• 出 处: 红领巾
• 发表日期: 2004年期
• 关键词: 棘鲨 盾鳞 生时 定位能力

鲨鱼,是海洋中的庞然大物,多数鲨鱼按身体大小聚集,成群活动,所以被称为“海中狼”。鲨鱼食肉成性,凶猛异常,连“海中之王”——鲸见了也退避三舍。鲨鱼长有独特的盾鳞,使鲨皮摸起来粗糙、不平滑,因为其构造似牙,故又称为“皮齿”。多数种类的鲨鱼为卵胎生,卵在母体中孵化,出生时为成形的幼仔。棘鲨的幼仔在母体中生活长达1年。

Sharks are monsters in the ocean. Most sharks gather by body size and act in groups, so they are called “sea wolves.” Shark carnivorous sex, ferocious abnormalities, even the “king of the sea” - whale see also shelved. Sharks have a unique shield scales, so that the shark skin feels rough, not smooth, because of its structure like teeth, it is also known as “skin teeth.” Most species of sharks are oviparous, eggs hatch in the maternal body, and are born pups formed. Spiny shark pups live in the mother for up to 1 year.