You could share the DNA because we all were created by God, who started with some common DNA.
You could share the DNA because we all were created by God, who started with some common DNA.On what day were the animals that inherit the earth (as my Cocktiel loudly calls for attention!) created and what day was it that man was created to inherit the same earth?
Actually, the key evidence is not simply that we "share" some DNA, but the exact *nature* of the matches and mismatches in all their detail.
The details of DNA comparisons are extremely indicative of an evolutionary origin, not a design origin. Or as a Freeper once said, not without justification, "if DNA is the result of design, the designer must have been drunk." There are a lot of features in DNA which no sane designer would have put in there, but which make perfect sense from an evolutionary standpoint. For just one example, there are genetic "scars" of ancient retroviral infections, shared across "kinds" which were allegedly separately created.
The DNA in each organism on Earth is a massive "book", which contains megabytes to gigabytes of information telling its biological story, including ancestral changes. Now that DNA sequencing has become routine on an industrial scale in the past few years, the amount of detail being learned from DNA has reached the proportions of a Niagara Falls of new knowledge about evolution.