Ichthyosaurs and other contemporary viviparous species , by contrast , gave birth to multiple offspring .

相反，鱼龙和其他同时代的胎生动物会一次生出多个后代。

The kinds and geographical distribution of viviparous plants in china .

中国胎生植物的种类和地理分布。

Any of various small viviparous new world fishes of the family poeciliidae , of fresh or brackish waters .

浮鲦产于新大陆的一种杂色鱼科小型胎生鱼，生活在淡水或半淡水中。

Any of numerous nonvenomous longitudinally-striped viviparous north and central american snakes .

北美和中美众多的无毒、胎生并有纵向条纹的蛇。

These lizards are viviparous , giving birth to an average of six live young in autumn .

它们是属於胎生的爬虫.大约再秋季生下约六只幼蜥.