The normal salmon is the smaller one , of course.
Hey, America: Time to get excited! Why? Because a year and a half from now you could be eating the very first genetically-modified animal approved for public consumption: The AquAdvantage® salmon! Assuming it passes the approval process, which began Wednesday.
Can you feel your mouth watering yet? Can't you just taste the genetic modifications? The AquAdvantage® salmon grows twice as fast as regular (boring) salmon, thanks to a neat bit of DNA from an "eel-like creature" called the ocean pout that's been grafted onto a chinook salmon's growth hormone gene. (The gene is then injected into the eggs of North Atlantic salmon, where it is taken up into the genome.) The company claims that the faster-growing fish will speed up salmon farming and increase production, and also make them a boatload of money. Well, they don't claim that last bit. But they're totally thinking it!