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My latest Mind and Matter column in the Wall
If you write about genetics and evolution, one of the commonest
questions you are likely to be asked at public events is whether
human evolution has stopped. It is a surprisingly hard question to
I'm tempted to give a flippant response, borrowed from the
biologist Richard Dawkins: Since any human trait that increases the
number of babies is likely to gain ground through natural
selection, we can say with some confidence that incompetence in the
use of contraceptives is probably on the rise (though only if those
unintended babies themselves thrive enough to breed in turn).