I had a friend who's neighbors field was tiled into a concrete box in the middle. Out of no where carp showed up. The only fish in the box. They lived in there, still do as far as I know. Is it impossible that fish evolved eggs that stuck to birds feet so they could spread to new water? At the very least many fish have eggs that stick to the substrate. To me the question isn't if the eggs could stick its How long can they be out of water?
