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PhotoJim99 t1_ismc8cu wrote

Reply to comment by craigery_t in How do fishes get into isolated inland lakes in the first place? and why don't we see more divergent evolution / speciation given the separation of each group of fishes from each other? by I-mean-Literally

Perhaps you were told it as speculation, and now it's been scientifically verified.

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antij0sh t1_isnr3dj wrote

It’s still not “scientifically verified” that bird feces is the vehicle for this phenomenon, it’s only been shown in this study that it’s possible for some eggs to survive digestion.

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PhotoJim99 t1_isqnsy4 wrote

Fair enough, but that's still a significant step forward from "speculated".

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cacomyxl t1_ist1hnx wrote

I think people have mentioned it, but this seems pretty conclusive to me.

Experimental Evidence...

And just like the raft theory of island population by land animals, it only take one incident over a period of many thousands or millions of years.

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katiekat122 t1_isp9s0j wrote

Alot lot are stocked by humans. I can only speculate but humans also fish with love bait etc. shiners. Im sure there are others that are used this may add thought to your question.

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