There may well be less than a hundred Texas cave salamanders in the wild. 世界上可能只有不到100只 野生洞栖童态河溪螈
Pickings are usually thin for the salamanders, 大鲵的收获通常都比较少
and salamanders have poor eyesight. 而且它们的视力也很差
These salamanders have an exceptionally slow metabolism. 大鲵的新陈代谢十分缓慢
Giant salamanders, world's largest amphibian, 大鲵——世界上最大的两栖动物