Earlier quoted context omitted.
> Also look at how violent humans are to their own species. Species is a construct though, our genes have no idea about species. Also I think that organisms feel most threatened by same-niche competitors, and least threatened by non-competitors. Similar but just different enough is like the worst case in terms of same-niche competition. Like how geese and ducks will act really adversarial towards each other, and then…
> Species is a construct though, our genes have no idea about species. You could also say that atoms are a construct, also molecules and nuclei. Nature has no concept of any of those. But the clumping is repeatable enough at everyday energies so that it's useful to think about it in those terms.
You could say it, but they are real things that interact with the environment. DNA is a real thing that interacts with the environment.
Species, the periodic table, etc. are constructs. They are useful because they help us understand the world.