The behaviour may also deter competing males and stops different species interbreeding.

这种行为也可能阻止互相竞争的雄性，并阻止不同物种的杂交。

There appeared to be little gene flow between the two groups, suggesting that they rarely interbred.

这两个群体之间的基因流通似乎很少，表明它们很少进行杂交。

Having a tight aggregation, hunting and interbreeding with related crocodile species all pose threats.

由于聚群密集，和近亲鳄鱼共同捕猎并种间繁殖，这都对它们造成了威胁。

Where their ecological ranges overlap, ecotypes rarely interact and do not appear to interbreed.

在生态幅度重叠的地方，生态型很少相互作用，似乎也不会杂交。

Because we don't know the exact source of that interbreeding, we can't link it with the fossils directly.

因为我们不知道这种融合混血的确切来源，我们不能直接把它和化石联系起来。

Fifty thousand years ago is the approximate time humans and Neandertals interbred.

五万年前是人类和尼安德特人杂交的大概时间。

And wherever the cats followed humans, they also interbred with the native wildcats already there.

在猫跟随人类的任何地方， 它们也会与当地的野猫杂交。

That's because about 40,000 years ago,certain human populations interbred with Neanderthals,meaning some people alive today have Neanderthal ancestors.

那是因为大约 40,000 年前，某些人类与尼安德特人杂交，这意味着今天还活着的一些人有尼安德特人的祖先。

It was not clear from the Oase man's genome whether interbreeding was common in Europe.

从绿洲人的基因组来看， 混血在欧洲是否很普遍尚不清楚。

Species, once separate, do not exchange genetic information because they do not interbreed.

物种一旦分离便不能再进行遗传信息的交流，因为它们无法交配。