This is one of those cases where our language gets the logic of biology backwards (or otherwise wrong) and at the same time potentially causes inappropriate human responses. Also, this approach to "morning sickness" is dripping with adaptationism. Which is good. Got a problem with that?
Have a look.
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Carl Zimmer is one kinky dude—he has a new article on sexual cannibalism in the NY Times, and his
There is a very interesting discussion going on at Sandwalk regarding adaptationism vs. ... whatever that other thing is that Larry believes in.
digg_url = 'http://digg.com/general_sciences/Why_Evolutionary_Psychology_might_be_crap_Fodor_vs_Dennett';
"Thinking again?" the Duchess asked, with another dig of her sharp little chin.
"I've a right to think," said Alice sharply, for she was beginning to feel a little worried.
"Just about as much right," said the Duchess, "as pigs have to fly...."