Submitted 12 hours ago by ramble81@lemmynsfw.com to nostupidquestions@lemmy.world
There is the issue of an orgasm before penetration, but barring that, does the length of intercourse have any bearing on reproduction?
Maybe for other animals but not humans. The fact that we’re one of the few creatures that enjoy sex is the evolutionary trait. In the world before contraceptives, humans enjoying sex meant more procreation.
… How do we know only a few other creatures enjoy sex? It seems like it’d be a good idea for evolution to do that with any animal that can enjoy things, and it’s not like we can ask most of them.
I asked my dog if he enjoys sex. He looked at me with a stern look and asked “Where are you going with this?”
Humans are unusual that females don’t show easily perceptible signs of ovulation and willingly fuck outside of that window.
I would recommend reading en.m.wikipedia.org/wiki/Sex_at_Dawn book. While getting lots of academic criticism, it describes logically (and criticism for that was the most minor) well why penis has a form it has sex last that amount of time when differs for men and women.
To cut it short our ancestors species females had sex with several males (and vice versa), where evolutionary not the strongest male would reproduce, but whoever sperm will get to the ovum first. So penis is a pump which should help to remove as much sperm of previous males as possible, (that’s why some time for sex is required), ejakulate as strong as it can, than soften and loose shape to stop acting like a pump. Also there were spermicids found in substance males ejakulate in the end, which might be to minimize next male chances.
Partly book is very questionable, but it has some valid points and quite fun to read. No idea what is true or not =)
Despite significant academic criticism of the research, reasoning, and conclusions of Sex at Dawn, the book received praise from many non-academic reviewers in the media.
So yeah, academically, the both likely hasn’t much worth
A trait that’s selected for doesn’t always mean it’s desirable to the individuals who have it.
Several things to consider, but I'm not sure about the first:
- I half-remember something about the female response helping the sperm get to their destination, but someone else will need to figure out if I have that right. I'm more confident that there are claims that the head of the penis is shaped to pull any existing semen out such that repeated action would make it more likely that any previous encounter was at a disadvantage over the more recent mate. Since I didn't study this myself, I've no idea how valid those claims are, but I know research papers exist and include several other species as well as humans.
- Will premature ejaculation reduce pair-bonding? Will the female opt a different mate or no mate at all if she has no desire to repeat the encounter? The female might have one pregnancy with an unsatisfying partner and many offspring with someone else.
- Will the female keep the offspring? Historically and in many other mammals, a mother may reject her young. She might do this because she is alone and can't care for it, or has a different mate who rejects it.
- Will that offspring survive to reproductive age? If not, the initial preganancy doesn't matter because an abandoned/neglected baby or youth that fails to reach maturity is an evolutionary dead end.
On the first point, I read the original paper. It was wild and shouldn’t be taken as fact. The authors modeled a 3d penis and vagina and showed that the penis is able to scoop out paste from the vagina. They then interpret it as that it’s “possible” for the penis to have evolved the way it has to scoop out rivals’ semen.
The obvious counter to the claim is that anything can be used as a shitty scooping spoon if you try hard enough.
Also, note that that woman would need to have some wild body counts if she’s having sex so often that she doesn’t even have the time to let the previous guy’s semen drip out
Who’d want to fuck in the first place if it wasn’t any fun?
Do you have any idea how terrifying a ducks penis is??? And yet, ducks exist. Ducks fuck.
I don’t know what pandas penis looks like, but they need to get to fucking. They’re gonna go extinct soon!
Maybe having violent and horrifying penis’s is the way to go!
You could also have too much offspring. Our current reproduction rates already have us at the brink of collapse. And the rest if the planet with us.
Our current reproduction rates already have us at the brink of collapse.
Technology has already given us plenty of ways to sustain a growing (at least until it tapers off on its own at ~10 bil) population without harming the planet too much. It's the filthy rich preventing us from doing so.
No no no no. This a myth. People saying we’re killing the planet. We’re not killing the planet. We’ll never kill the planet. The planet will kill us. All humans will die, and earth will carry on. And some new species will take over. And millions of years from now, they’ll discover our modern day buildings. Deep burried underground.
They’ll mistake them for bones at first, but eventually they’ll figure out that these are primitive structures for housing. Housing that doesn’t fly. Doesn’t teleport. Doesn’t blast off into space. Just stationary buildings. And then they’ll laugh at how stupid humans were.
That’s capitalist propoganda. It’s so the working class dies out.
You’re finally going to get communications a day before you burn down the planet blaming everyone but yourself 🤣
Nemo@slrpnk.net 4 hours ago
You can’t bar that. That’s the phenomenon you’re describing.