The word " species" lets us say: " Here's a group of organisms with things in common."

“物种”这个词则指的是：“这是一群有共同之处的有机体。”

I primarily study a group of organisms called mollusks.

我主要研究一组称为软体动物的生物。

The biological species concept defines a species as the group of organisms which can interbreed.

生物物种概念将物种定义为可以杂交的生物群。

Now, I don't know exactly what that means but basically, it's a unit of classifying groups of organisms – living things.

现在，我不确切地知道那是什么意思，但基本上，它是对有机体 - 生物进行分类的单位。

Another way we can think about species is as a group of organisms that has adapted to similar environmental pressures, or the Ecological Species Concept.

我们考虑物种的另一种方式是把它看作一群适应了类似环境压力的生物，或者是生态物种概念。

They shaped ecosystems, influenced the evolution of other groups of organisms like birds and bees, and diversified into hundreds of thousands of species over hundreds of millions of years.

它们塑造了生态系统，影响了鸟类和蜜蜂等其他生物群体的进化，并在数亿年的时间里分化成数十万种物种。

Most scientists favor the Biological Species Concept — which sees a species as a group of organisms that can interbreed with each other and create fertile offspring.

大多数科学家都赞成生物物种概念——它认为物种是一组可以相互交配并产生可繁殖后代的生物。

It was Hamilton, the butterfly-collecting son of a civil engineer, who had the crucial insight: that what matters in evolution are not organisms or groups of organisms, but individual genes.

Hamilton，一位土木工程师的儿子，蝴蝶收藏者，拥有敏锐的洞察力：影响生物进化的不是生物体或生物群落，而是个体基因。