Merri also looked at foot-propelled, underwater diving birds.

梅里还研究了用脚推进的潜鸟。

That placement often appears in diving birds.

这种位置经常出现在潜水鸟身上。

It was built like a diving bird, with a body meant for quickly swimming in water.

它的构造就像一只潜水的鸟，身体适合在水中快速游泳。

There were different diving birds during the Cretaceous, including North America's Hesperornis, which reached about 1.8 meters long.

白垩纪有不同的潜鸟，包括北美的长翅鸟，它长达1。8米左右。

And the larger marine reptiles and sharks that had made the seas so treacherous for diving birds were gone, too.

使海洋对潜水鸟类如此危险的大型海洋爬行动物和鲨鱼也消失了。

And Waimanu was only the first member of what would become a very diverse and sometimes strange group of diving birds.

怀马努只是后来成为一个非常多样化、有时甚至是奇怪的潜水鸟群体的第一批成员。

Birds continued to evolve into a variety of lineages that are now extinct, including the Enantiornithes, or opposite birds, and Hesperornis, which were loon like diving birds with teeth.

鸟类继续进化成现在已经灭绝的各种血统，包括反鸟，或相反的鸟类，以及像潜鸟一样长着牙齿的潜鸟的 Hesperornis。