Random Thoughts - Love_Lust

There was a huge reaction over the astrophysicist Neil deGrasse Tyson's following tweet on sex.

If there were ever a species for whom sex hurt, it surely went extinct long ago.

— Neil deGrasse Tyson (@neiltyson) March 11, 2016

Many have tried to educate the astrophysicist about biological truths of different species.

However, that tweet reminded me this study on dopamine.

"It was believed that dopamine regulated pleasure and reward and that we release it when we obtain something that satisfies us, but in fact the latest scientific evidence shows that this neurotransmitter acts before that, it actually encourages us to act. In other words, dopamine is released in order to achieve something good or to avoid something evil," explains Mercè Correa.

I suppose even among humans the pleasure or pain of sex doesn't matter. We are involuntarily driven to seek sex irrespective of the outcome. So, even if sex hurts we are bound to try it again as we are constantly motivated(provided dopamine levels are normal). I'm tempted to say -if there were ever a species for whom motivation to have sex doesn't exist, it surely went extinct long ago- but there could be species that still mate without any motivation.