This process of dna copying would be mitosis.
Species evolve over time based on their environment.
If part of a group of a species gets isolated into a new environment, then both species (the initial environment and the new one) will evolve differently because of their different environments and in result become different.
So since they both evolve differently based on their different surroundings, the group that was isolated becomes a new species.
Answer:
There are some birds like the Pterodactyl that were dinobirds, so yea! doesnt mean their reptiles or anything, just long related
Explanation:
They ancestors, my guy
The test was faulty and did not yield accurate results