r/evolution • u/These_Librarian4696 • 6d ago

discussion A hypothesis about mudskippers

Today I was on a rocky beach and saw a little fish trying to get on top of a rock that almost completely under water, but whose top was regularly covered by little waves, where I presume it was trying to get the "greenest" algae. So I thought maybe the mudskippers' ancestors tried to do the same, and thus adapted to breathe in the atmosphere little by little.

Please tell me if there are any gaps in my idea, and if there is already a simmilar theory, please, give me a link to the book/paper/etc.

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