> "Only cladistically" is a bit like saying "only in reality" imo.
In the sense that "imo" means "in my opinion, not necessarily in reality".
Clades are just a view on biology. It's not the only one. Otherwise, very few things in biology would exist.
> Well.. eel-like probably more I'd guess.
Still a fish.
The only people who want to see fish cladistically are the ones who don't want fish to be a thing. Fish are obviously a thing, and they are obviously not a clade. It describes function: water, gills, spine.
In the sense that "imo" means "in my opinion, not necessarily in reality".
Clades are just a view on biology. It's not the only one. Otherwise, very few things in biology would exist.
> Well.. eel-like probably more I'd guess.
Still a fish.
The only people who want to see fish cladistically are the ones who don't want fish to be a thing. Fish are obviously a thing, and they are obviously not a clade. It describes function: water, gills, spine.
> eels are not fish
Many disagree.