13

?

50,000 40,000~25,000 vs 30,000 35,000 14,000~11,000

62106 6x5x2.5 m3

?

Why not vice versa?

? 4000 14

850065005000?

life find its way,

Jared Diamond

vs

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*()*Its amazingthe whole world is very very different.

*62106why* ()exactly80%* 14DNA

*850065005000

*Jared Diamondvery good critical thinkingcheeseLife find its waychain reaction

*18Jared Diamond

*Global warmingoriginalinnovationinnovationoriginal

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*scientific historysciencedominatedominate

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