are

2047 篇文章
but these are animals...
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but these are animals... 但这些动物

animals these are but
Most are soft-bodied and rooted to the seafloor.
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Most are soft-bodied and rooted to the seafloor. 多数为软体且根植于海底

rooted soft-bodied seafloor most the to are and
are now extinct.
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are now extinct. 99%已经灭绝

extinct are now
The siblings are faster than their mother.
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The siblings are faster than their mother. 两只幼龙比母亲更快

siblings faster than mother their the are
until they are big enough to join the rest of the herd.
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until they are big enough to join the rest of the herd. 直到它们长大到足以加入龙群

big until rest join enough herd they of the to are
These are Maiasaura,
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These are Maiasaura, 这些是慈母龙

maiasaura these are
But it's not just those doing battle that are always changing.
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But it's not just those doing battle that are always changing. 但不断变化的 不仅仅是参与战斗的生物

doing changing always battle those just not it's that are but
other butterflies adapt to only lay on plants that are free of eggs...
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other butterflies adapt to only lay on plants that are free of eggs... 其他蝴蝶进行进化 只在没有卵的植物上产卵

butterflies adapt lay free eggs plants only of other that to are on
And yet, they are just 1% of all species that have ever existed.
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And yet, they are just 1% of all species that have ever existed. 但这只是曾经存在过的物种中的1%

existed yet ever species just they of all that have are and
There are more than ten million species of plant and animals alive today.
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There are more than ten million species of plant and animals alive today. 如今 超过1000万种动植物 生活在地球上

plant alive today than species animals ten million more of are and there