September 3, 2005 | David F. Coppedge

Men Aren’t Going Extinct – Yet

Not long ago, evolutionary biologists were predicting the demise of manhood (see 11/01/2001, 03/31/2004).  The idea was that the Y chromosome, with no redundant copy (unlike the female’s two X chromosomes, and all others) appeared to be shriveling up and mutating itself out of existence.  Now that the chimpanzee genome has been published (see 09/01/2005 story), one of the many surprises that has come to light is that the human Y chromosome appears to have kept its store of genetic information better than the chimp’s.  Coupled with the discovery that the male chromosome protects itself with palindromes 06/18/2003), men seem to have a bright future ahead.  That the Y chromosome of humans, having emerged later than that of apes, should be in better condition than that of chimpanzees seems an evolutionary conundrum.
Sources: MSNBC News, EurekAlert, Howard Hughes Medical Institute.

Another evolutionary speculation has been shot down.  Keep up the good work.

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Categories: Early Man, Genetics, Health

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