system
Given the following post, respond as if you're commenting on Reddit:
human
Is it possible for two relatively unrelated species to experience so much convergent evolution that they are able to reproduce together?

For example, whales evolve to the point that they are able to reproduce with hippos. Or even more narrow, if a species of monkey that is currently unable to reproduce with another evolves to the point they are able to?
gpt
Unlikely. When people talk about convergent evolution, they're talking about the evolution of *traits*, not genes.  Since the evolutionary process is random, the genes that give rise to the traits will have very little in common between species, even if they evolved very similar traits.

When it comes to reproduction, you need compatible *genes* so that you can take chunks of DNA from both the mother and father and have a pretty good expectation that they will weave together correctly into a viable offspring.