this post was submitted on 04 Apr 2025
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So, with more evolution, will it lose those legs or will it gain front legs?
Evolve into fins, then gills, then come back to the ocean
Probably not the gills. Once you go lungs you never go back, looking at all those mammals in the ocean.
How do we know none of the fish species never had lungs? Isn't it impossible to define a fish biologically without excluding a whole bunch of land living species?
We probably can't. It's just lungs are more complex than gills and usually evolution goes towards to more complex systems. If you're talking about classification, I wouldn't say impossible. Though I'm not a taxonomist.
honestly, it's for it to decide (As a human I'd whisper stay the course, hands are overrated and gave me taxes)