神秘的蝾螈
所属栏目：绿色空间
所属频道：CCTV-10科教
年份：2010
展开全部
简介：在地球46年的生命史当中，关于物种的进化还有许多难以解释的疑团。然而，这种动物却能够让你了解在生命进化的某一个阶段曾经出现过的巨变。中国有一种珍惜的水生动物名叫大鲵，俗称娃娃鱼。在动物学中，它被定义为终生有尾的两栖动物，属于有尾目。就是这类在水中生活的鲵或者螈有一天爬上了陆地，变成了在陆地上生活的蝾螈。即使今天，科学家们通过试验还能够让一种蝾螈的身体发生奇妙的变化。让我们一起来看一看这些令我们吃惊的水陆精怪。收起
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