Two decades after the human genome sequence was completed, researchers have finally finished a map of the piece that makes males distinct. The Y chromosome is what distinguishes biological males ...

WASHINGTON -- Women may think of men as primitive, but new research indicates that the Y chromosome -- the thing that makes a man male -- is evolving far faster than the rest of the human genetic ...

Why does the Y chromosome matter? In a landmark genetic study, published in March 2003 in the American Journal of Human Genetics, researchers reported that around 0.5% of all the men in the world ...