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The end of men?

The Y chromosome is, in effect, cloned from father to son; and it is gradually decaying. In ten million years, human males may have ceased to exist.

By Mark Ridley   February 2003

Book: Dr Tatiana’s Sex Advice to all Creation & Y: The Descent of Man Author: Olivia Judson & Steve Jones (respectively) Price: Chatto & Windus, ?16.99, & Little, Brown, ?14.99 (respectively)

Olivia Judson’s Dr Tatiana and Steve Jones’s ‘Y’-two popular science books about the evolution of sex-are hugely different in style and content, but they both end up with the same question: are men on the way out? The ancestors of modern human beings all bred sexually, at least back to about two billion years ago. During that time, males have done half the breeding each generation. If you trace…

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