So humans are an alien manufactured hybrid?
Not necessarily alien - the chimpanzees we share lineage with are known for insane promiscuity, and pigs are known to have sex for pleasure (which no other primates do - they finish on average in seconds [3-6 pumps].
It was likely just horny animals too close in proximity.
All animals have sex for pleasure. We’re driven to have sex by the reward centre in our brains which is where dopamine is produced. Without this many animals would die off due to not bothering to have sex cos it’s too much effort. Think a more natural version of D&D nerds.
I mean 'for pleasure' as 'without being for the express purpose of producing children' or 'for the sole purpose of producing climax'. Pigs are known to have sex for 20 to thirty minutes, and are recorded to have an orgasm response (which most animals, primates included, don't have), which is very inefficient compared to primates, which have so-called 'sexual swellings' (the female rear end turns bright red and is engorged with blood) and where the males complete the task in seconds.
&nsbp;
Given that the goal for most humans having sex is climax, and that pigs are recorded to also have climax, which primates don't, I believe my original statement that pigs are known to have sex for pleasure in contrast with primates stands.
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