Amazing! I find it fascinating the evolutionists tie themselves into knots with explainations.
Aparently some fish just started doing it, and then they stopped and reverted back.
“In evolutionary biology, convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.”. If it happens once, it may well happen several times given the right conditions both in the environment and the creature (fish here). However this fish has a necessary structural adaptation many lung fish and other walkers don’t have, an attached hip. There is no reason to believe only one fish species evolved into one amphibion species. Evolution is a “bush” not a “ladder”. You should do some reading on this subject by someone other than a creation apologist. I don’t believe it will have any negative impact on your faith.