Are men going extinct?

Researchers noticed that the Y chromosome is become less prevalent. The Y chromosome is of course the one that makes a human male. So could males be on the brink of extinction?

Some researchers predict that it might happen within the next 5 million years. Many believe that it's done shrinking in total, and has reached optimal efficiency.

Anthony from Discovery News unveils what you need to know about the possible demise of the Y chromosome.

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