Heck, I thought he was joking about Lucas being 4,000 years old, “When I was young…”
Not sure if this is relevant to fish crossing basins, but there are fish in India that can “walk”/“crawl” half a mile on land and go to other lakes/water bodies. They can stay without water for up to 7 days.
One such fish is the climbing perch : Anabas testudineus - Wikipedia
Another such fish is the blue walking fish : Blue Walking Fishzilla Discovers in Himalayas | Science Times
Are we just completely discounting waterspouts, people?
My consensus with myself was that waterspouts only work for frogs. I saw it in a movie. Nice creatures, frogs, BTW.
I saw a documentary of some rhipidistians transported to a new basin via atmospheric phenomena, but they couldn’t compete with the indigenous species. Not every novel species is invasive, which makes it hard to know how many inter-basin transports occur, if many of the transported fail to establish themselves.
There’s probably some studies looking at gene transfers between basins. Wide-spread species would show genetic drift among the populations of different basins if there’s no genetic exchange among them.
What are you talking about? They *completely *killed off one subspecies of the dominant species…probably paving the way for the remaining subspecies to completely take over. They competed just fine.
And of course there is a whole series of documentaries on the atmospheric transport of cartilaginous fish.
Oh, they had an impact on the local ecosystem, but in evolutionary terms, if they didn’t establish a breeding colony, it was a failure.
Fair enough.
Ah, thank you. Not so much a misspelling really as autocorrect, but yeah…
Are you an archaeologist or a linguist? Otherwise an autocorrect program that assumes Sumer is more likely to be meant than summer is pretty weird.
The fish’s stomach could easily contain recently consumed material in which fish eggs are present - bird catches fish in the lake; flies to branch overhanging a different body of water and begins eating the fish; the stomach contents fall into the water.
All of these scenarios are unlikely, but across the span of hundreds or thousands of years, the dice keep rolling.
A fertilized fish egg that was swallowed by a fish would die within seconds to minutes, if from nothing else oxygen deprivation. The odds of survival, successful incubation, and subsequent hatching of an eaten egg redistributed this way are very slim indeed.
The young of some non-food, non-game species may have been used for bait and dumped into the lake/river.
Not if my fat thumbs misspelled it badly enough in the first place. 
Fish eggs can survive a reverse Lemmiwinks through a duck. Also, someone at Scientific American can’t draw a duck.