You may have heard of "dark matter" — the mysterious stuff that apparently makes up 27 percent of the universe but can't be detected by conventional means. But we don't have to look deep into outer space to find an intractable mystery. "Dark DNA" is the biological cousin of dark matter, in the sense that we can't see it but we know it's there. And hiding with it just might be some of evolution's deepest secrets.
Uncharted Genetic Territory
The Evolution Will Not Be Gene-Sequenced
What You Didn't Know About Your DNA
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