strengthened to prevent silica in the grass from wearing them out... 能够防止草中的二氧化硅磨损牙齿
that help them thrive in the rich rainforest. 能够帮助它们 在富饶的雨林中兴旺发展
making them the world's greatest swimming birds. 这使它们成为 世界上最伟大的会游泳的鸟类
fine-tuning them to no longer fly in the air, 不再将其用于飞行
Their aerial assault allows them to compete with the ocean's greatest predators, 空袭令其能够 与海洋中最强大的捕食者竞争
The greatest invaders of them all... 其中最伟大的入侵者
but their tiny cousins had recolonized them 但它们的小表弟以一种全新的方式
Elongated beaks allow them to feed on a kaleidoscope of different flowers. 长长的喙使它们能够吸食各种花朵