Evolution is regarded as a branching process, whereby populations are altered over time and may speciate into separate branches, hybridize together, or terminate by extinction.

被视为一个分枝过程;随着时间的推移,
群发生
,
群
可

成为分枝,
可
相互杂交或灭绝终止。
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钢铁 
钢铁 Yes, we have now domesticated pecans as a nut tree and blueberries as a fruit, and we have improved some Eurasian fruit crops (apples, plums, grapes, raspberries, blackberries, strawberries) by hybridizing them with North American wild relatives.
是的,我们现在已经驯化山核桃作为坚果树,驯化蓝莓作为水果,并且通过
北美野生近缘种杂交改良了一些欧亚水果作物(苹果、李子、葡萄、覆盆子、黑莓、草莓)。

钢铁 