Basically if two species occupy the same ecological niche in the same physical location, one will ultimately win out, because it will be slightly more fit. This

Basically if two species occupy the same ecological niche in the same physical location, one will ultimately win out, because it will be slightly more fit. This creates a pressure to either quickly branch into a new and different species, or remain the same. This also taps into the species problem, because the whole concept of a "species" is an artificial human construct, for which nature has no respect. https://en.wikipedia.org/wiki/Competitive_exclusion_principle https://en.wikipedia.org/wiki/Competitive_exclusion_principl... https://en.wikipedia.org/wiki/Species_problem https://en.wikipedia.org/wiki/Species_problem