Every change in an animal feature has to be a genetic change. Every genetic change is caused by small accidental mutations. Most changes are very slight – if the environment dramatically changes to allow for a mechanism for genetic drift – did newly changed creatures have enough change to survive that much more?
Are those small accidental changes in the genetic code enough for the evolution of such an information-rich, sophisticated genetic code?
Professional engineer Colin Gibson puts it this way: “What magic mechanism re-wrote the DNA software to make the animal ‘adapt’ and change it to another kind of animal, especially before the change in environment killed it? Writing my own software at uni was hard enough and took a lot of thought, so how did DNA get re-written with no effort? What was the mechanism?”