The advantage is that if there is a new illness some of these animals my die, but others will survive and pass on the ability to resist that disease to the next generation.

其优点是，如果发生了某种新的疾病，这类动物可能会死去，而另外一些却能存活下来，并且把这种抗疫力传给下一代。

youdao

The advantage is that if there is a new illness some of these animals my die, but others will survive and pass on the ability to resist that disease to the next generation.

其优点是，如果发生了某种新的疾病，这类动物可能会死去，而另外一些却能存活下来，并且把这种抗疫力传给下一代。

youdao