41 篇文章
By the early Holocene,
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By the early Holocene, 到全新世早期

...spot the danger early.
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...spot the danger early. 很早就发现了危险

But milk wasn't the early mammals' only secret weapon.
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But milk wasn't the early mammals' only secret weapon. 但是母乳并不是 早期哺乳动物唯一的秘密武器

...that early mammals were confined to the shadows.
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...that early mammals were confined to the shadows. 以至于早期的哺乳动物只能躲在暗处

In the clearing, a herd of early mammals graze.
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In the clearing, a herd of early mammals graze. 空地上 一群早期哺乳动物在吃草

And in early South America, 46 million years after the asteroid,
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And in early South America, 46 million years after the asteroid, 在早期的南美 小行星撞击的4600万年后

With these early gliders,
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With these early gliders, 通过这些早期的滑翔者

Most early mammals didn't have armor or size to protect them...
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Most early mammals didn't have armor or size to protect them... 多数早期哺乳动物 没有护甲来保护它们

we can still find the descendants of those early supersocializers.
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we can still find the descendants of those early supersocializers. 我们仍然可以找到 早期超级社会性动物的后代

it's one of the largest predators on land in these early days of the dinosaurs' reign.
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it's one of the largest predators on land in these early days of the dinosaurs' reign. 是恐龙统治时代早期 最大的陆上捕食者之一