I got to thinking. Could it be that hypothetically, hundreds of thousands / millions of years ago, significant DNA mutations occurred simply more frequently, and a hypothetical mammoth in the next generation bred offspring with changes (from which most died, but the survivors passed on) and these changes were more likely and significant than similar ones today in modern elephants? I don’t know, maybe due to chemical, radioactive, or other factors. I’d like to hear the opinion of those knowledgeable about this.
My second thought – if external factors influence how an organism forms, could it be that hypothetically all fish grow horns if the chemical composition of their habitat changes miraculously? This is a joke, of course, but the idea is that can a change in the environment provoke a global change in the translation of genetic information, bringing dormant genes to the surface across the whole population sharing this environment?
Hi, I'm Rauf Aliev. 