First things first, I'm not planning to buy fish to crossbreed and sell any crossed fish to a store (unless a freak occurrence happens and it's gone through several successful generations by chance then heck yes I'm making some money, who wouldn't? lol). The questions are just for my personal knowledge and curious mind, as well as anyone else out there whos mind likes to roam their imagination.
Is complete crossbreeding impossible?
To better explain I'll use some examples.
By complete crossbreeding I mean literally a cross from one thing to another, not cory+cory or pleco+pleco but things like pleco+cory or gupy+cichlid.
AH AH AH!...don't start saying impossible just yet..
For curiosity sake I'm talking serious business (possibly fun fantasy business), like the president of the united states pours all the funds into scientific breeding research to cross something you say is "impossible". Say they take the sperm of a Common Pleco and insert it or fertilize eggs from a molly or a cory.
Is it still impossible?
Even by a mutation or rare once in a trillion year happening, like the pleco just runs over to the cory and mates with it and the corry accepts.
Impossible does mean impossible...mankind DID think the earth was flat for a long time and it was "impossible" that it could be round. So when you say impossible I want you to reallllllly reallllly think about it.
Being negative and saying it's impossible just sucks the fun out of it.
You also have to think, somewhere down the genetic line, whether it be in prehistoric times or not, a fish HAD to cross breed with something today you would say was "impossible" to get such an enormous amount of species on this planet.
So to sum this all up the question will be...
If someone purposely went out into the world to crossbreed a fish..money, laboratories, the person has any means of accomplishing this, can they?
(Just keep in mind before you put your answer...we can grow human ears in/on a rats body so the possibility is probably there to cross a few unlikely fish).