9CaKrnJYn9B tech.huanqiu.comarticle螺旋状像个鱼雷：鲨鱼卵原来长这样！/e3pmh164r/e3pmtlao3<article><section data-type="rtext"><p>大千世界无奇不有。今天，我们来见识见识鲨鱼卵，确切地说是虎鲨之类的卵。</p><p><em data-scene="strong">鲨鱼有卵生、卵胎生、假胎生三种繁殖方式，没有真正的胎生，而鲨鱼卵形态都比较奇特，比如虎鲨的，外表呈螺旋状，还有粗丝，像个鱼雷。</em></p><p>这么长的好处是<em data-scene="strong">卵可以牢牢地固定在礁石或者海草上，防止四处漂流，另外还有厚厚的卵鞘，可以抵抗捕食者。</em></p><p>这些卵的孵化器从几天到几星期不等，之后鲨鱼就会离开幼仔，让它们独立生存。</p><p><i class="pic-con"><img src="//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083026473.jpg?imageView2/2/w/1260"/></i></p><p><i class="pic-con"><img src="//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083026343.jpg?imageView2/2/w/1260"/></i></p><i class="pic-con"><img src="//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083026534.jpg?imageView2/2/w/1260" data-alt=" "/></i><i class="pic-con"><img src="//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083027232.jpg?imageView2/2/w/1260" data-alt=" "/></i><i class="pic-con"><img src="//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083027775.jpg?imageView2/2/w/1260" data-alt=" "/></i><p><i class="pic-con"><img src="//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083027779.jpg?imageView2/2/w/1260"/></i></p></section></article>1478046540000责编：陶文冬<a href="http://news.mydrivers.com/1/505/505683.htm" >快科技</a>147804654000011["9CaKrnJYn8m","9CaKrnJYlVO","9CaKrnJYlC6","9CaKrnJYly2","9CaKrnJYlwb","9CaKrnJYlsI"]//himg2.huanqiucdn.cn/attachment2010/2016/1102/20161102083026473.jpg{"email":"taowendong@huanqiu.com","name":"陶文冬"}