Biologists have also predicted that these kinds of behavioral traits may keep incipient species separate even when geographically isolated populations somehow wind up back in the same place.

• 生物学家们还预测，即使地理上隔离开的种群又返回到同一个地方，这些行为特点仍可能保持端始种分离，但是这方面的例子仍然十分少见。