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5665 篇文章
Thanks to parental care,
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Thanks to parental care, 多亏有父母的招呼

parental care thanks to
They have their mothers to look after them.
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They have their mothers to look after them. 它们有母亲来照顾自己

look mothers their after they them have to
making them perfectly adapted to hunting in burrows
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making them perfectly adapted to hunting in burrows 使它们完全适应了在洞穴中捕猎

perfectly adapted burrows making hunting in them to
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

didn't armor protect early size mammals most or them have to
Giving birth to live young
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Giving birth to live young 生下活的幼崽

birth live giving young to
Crucial to the success of mammals
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Crucial to the success of mammals 哺乳动物成功的关键是

crucial success mammals of the to
thought to number only 3,000 in the wild.
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thought to number only 3,000 in the wild. 据估在野外只有3000只

thought number wild only in the to
it's possible to get a glimpse
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it's possible to get a glimpse 依然可以一窥

glimpse possible get it's to a
and able to take care of their young.
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and able to take care of their young. 并且能够照顾幼崽

care able young their of to take and
these small creatures were limited to a life in the margins.
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these small creatures were limited to a life in the margins. 这些小生物局限在边缘生活

margins limited life these small creatures in the to were a