I’ve added comments from biologist Laurent Excoffier to my X-woman post. His verdict: probably another species of hominid.
So, why are they calling it “X-Woman”? Just to be cute? They certainly haven’t shown that it was female.
[CZ: It's just an homage to the mitochondria from which the DNA was isolated. All mitochondria is passed down from mothers to children.]
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Carl Zimmer writes about science regularly for The New York Times and magazines such as DISCOVER, which also hosts his blog, The Loom. He is the author of 12 books, the most recent of which is Science Ink: Tattoos of the Science Obsessed.