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Originally Posted by Nimetic
What bugs me is this. How the f*** does a complex instinct like this get transmitted through DNA (and optionally, helper bits), in a single cell, from parents to offspring.
I know that's off topic. But it has always seemed amazing to me...
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You'd actually be suprised how much behaviour is actually hardwired into the brain.
Its not really a case of 'well, specimen X didn't get eaten by a wolf in the dark, so his genes were better', more of a build up over generations of subtle tweeks in behaviour. If your genes got it wrong, you died, and that particular fuck-up didn't generally go much further beyond you.
Look at a car now, someone didn't suddenly go 'hey, if i stick this in this, light it, stick some carbon fibre over the top and sell it rediculously expensivly i can make lots of money', petrol heads over the generations slowly perfected the design based on what came before. Those who got it wrong...blew up
On topic, i believe humans have a HUGE variety of fears and ingrained desires, but we simply over ride them, and often dismiss ideas in our head as fanciful crap, because we do not need them anymore.
If you want an interesting one, are humans afraid of failing
out of love?