Those seeds then start to grow, adding new alleles to our population's gene pool.

然后这些种子开始生长，为其种族基因库增加新的等位基因。

Modern humans may have simply been better at finding resources and adapted better to a warming climate, or perhaps a bit of genocide occurred, or perhaps humans mixed with the Neanderthals and simply absorbed them into the modern human gene pool.

现代人类可能只是更善于寻找资源，并更好地适应了气候变暖，或者可能发生了种族灭绝的情况，或者可能人类与尼安德特人混杂在一起，然后简单地把他们吸收进了现代人类的基因库。