By going down there and studying things like ctenophores, comb jellies, jellyfish, copepods, weird bioluminescence worms, we can learn from them.

通过深入研究像栉水母，栉水母，水母，桡足类动物，奇怪的生物发光蠕虫，我们可以从它们身上学到东西。

In fact, they might've been the earliest branch, though some scientists think ctenophores -- also known as comb jellies -- might've come first.

事实上， 它们可能是最早的分支，尽管一些科学家认为栉水母——也被称为梳状水母——可能是最早出现的。