We dont really know yet why or how it happens, but it makes us wonder what else DNA might be doing without our knowledge.
Maybe an Intelligent Designer???
Now you did it. I hope you're wearing asbestos underwear.
Touched by His Noodly Appendage...
"Maybe an Intelligent Designer???"
Why intelligent? I understand that some people might want to believe there is some kind of designer that existed before the existence itself(contradictory, but still..).
But, why "intelligent?"
There are a lot of imperfection, mutations, alterations, and randomness in the natural world to be called part of the "intelligent" creation. Unless the randomness and imperfections themselves are well thoughtout by a "designer."
Like modern art.