On: Paris zoo unveils a slime mould

[occamsrazorwit]

https://news.ycombinator.com/item?id=21277742

tl;dr: There are 720 variations of the animal that have different sexual reproduction limitations with each other. They have the same anatomy but differ on the DNA level.

[major505 → occamsrazorwit]

If an organism have enouth DNA diference that dosen`t allow it to reproduce with another, that would not make it another species?

[occamsrazorwit → major505]

No. It's just a small part of the DNA (like male vs female in most animals). The organism that can't reproduce with another organism still came from two of the same organisms.