It is the size and immense adaptability of the human brain that is responsible for the transformation of our species from tree-dwelling primates into the dominant species on the planet.

正是由于人类大脑的体积和广泛的适应性，我们才得以从居住在树上的灵长动物演化成这个行星上的支配性物种。

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This comes in especially handy as it is tree-dwelling.

这对它这种住在树上的动物特别有用。

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All primates have fingerprints, as do some tree-dwelling mammals, such as koalas.

所有灵长类动物都有指纹，一些栖息在树上的哺乳动物如考拉也不例外。

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Such fast change is not seen among apes, and while Prof Tattersall acknowledges the importance of the move our ancestors made from a tree-dwelling, to a ground-dwelling existence - something which has not affected our primate cousins - he says it is not enough to explain what is observed.

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