A two-ton wombat, a thousand-pound kangaroo, and a 500-pound bird now known as Genyornis newtoni were spread across the continent.

2吨重袋熊、1000磅袋鼠及500磅重现在名为牛顿这种巨鸟，在当时大陆上随处可见。

For millions of years, a gigantic, flightless, carnivorous bird called Titanis was possibly the most ferocious creature in North America.

有几百万年时间，一种名叫“巨鸟”不会肉大鸟可能是北美最凶猛动物。

The swans' nest never breaks apart even when giant birds fiercely attack it because the swans will fight back all together.

即使遭受巨鸟猛烈攻击，天鹅仍然固若金汤，因为天鹅们会合力反击入侵者。

Which is why researchers set out to look for proof that human predation played a role in the demise of Genyornis.

因此研究人员们据，希望找出远古人类捕猎对这种巨鸟灭绝产生影响。

Mayr and others described the giant bird in a paper released this week.

梅尔和其他人在本周发表一篇论文中描述了这只巨鸟。

It flew with the slow, spread-wing heaviness of a full load—like a giant bird coming to its nest.

它带着满载缓慢展开翅膀沉重行——就像一只巨鸟归。

So, even though they couldn't fly, these giant birds must've somehow managed to float, or swim, or walk through the shallow waters that connected the islands between the two continents.

因此，即使它们不会，这些巨鸟也一定能以某种方式漂浮、游泳或行走在连接两大洲岛屿浅水区。

He turned, shook his shaggy head to get the hair out of his face and gave an odd, shrieking cry that echoed through the dark trees like the call of some monstrous bird.

他转过身，摇摇脑袋甩开挡在脸上头发，发出一种古怪、尖厉叫声，在幽暗林子里回响，像是巨鸟呜叫。