8 votes

What is the latest consensus on the causes of sexuality?

You are correct. The Nature article to which you refer does contain the line, "There is no gay gene." But that can't be, and is not, the conclusion. In context: The largest study to date on ...
anongoodnurse's user avatar
6 votes
Accepted

Are humans the only mammals that are known to display homosexuality?

Although intuitively it would seem unlikely that there could be an evolutionary advantage to homosexuality (other than some theories regarding population control), homosexual behavior has been clearly ...
airhuff's user avatar
  • 290
5 votes
Accepted

If sexuality is genetic, how did asexuality evolve?

Update: See @Bryan Krause comment. Just because something exists (or equally, doesn't exist) does not mean that it was selected for or has any evolutionary relevance. Imputing selection to any ...
Maximilian Press's user avatar
3 votes

Why do humans have sex for recreational purposes?

"I know it feels good but it doesn’t make sense to do something that risky unless you want a progeny" This right here is where you are tripping up. It's not about what one wants. It's about ...
DKNguyen's user avatar
  • 920
3 votes

Are humans the only mammals that are known to display homosexuality?

This reminded me of the rat overpopulation experiments from the 1960'sish, in a nutshell, if rats are allowed to overpopulate in a confined area, the males become stressed, violent and homosexual.
Oliver Houston's user avatar
3 votes

Is sexual desire stronger in men than women?

Some of the work of Bob Trivers makes some sense to me. He talks about parental investment https://en.wikipedia.org/wiki/Parental_investment. The "investment" of a man could be as little as paying for ...
Karl Kjer's user avatar
  • 7,663
3 votes
Accepted

why a testosterone pill can't be effective?

As stated in the comments by Eliane B., testosterone can actually be administered orally when an undecanoate ester is attached. The reason regular testosterone cannot be adminstered orally is because ...
pbond's user avatar
  • 275
2 votes

Do bisexuals have any evolutionary advantage over straights and gays?

Like many things, whether bisexuality is advantageous for an individual's reproductive success or not depends on the environment. The fact that a wide variety of sexual systems and behavior exists in ...
Oosaka's user avatar
  • 3,245
2 votes

Is human "sperm warfare" a concept supported by biology?

Not in humans Sperm competition is supported in humans (multiple sperm from multiple partners can be present in the same female) Specialized sperm is not supported. Specialized sperm is however ...
John's user avatar
  • 14.7k
2 votes

Ejaculation without orgasm: is this possible to do it at will without external stimulation?

Yes, it is possible. It is all in the brain. One can be sufficiently aroused to ejaculate without any contact. The most obvious example of this is the case of nocturnal emission A nocturnal ...
Remi.b's user avatar
  • 68.1k
2 votes
Accepted

What is the latest consensus on the causes of sexuality?

On the epigenetics of sexual preference, please see the following: Balthazart, J. (2020). Sexual partner preference in animals and humans. Neuroscience & Biobehavioral Reviews, 115, 34–47. https:/...
BrownBag's user avatar
  • 159
1 vote

Is “random arousal” in humans still caused by/connected to “background” sex drive?

I think that libido and spontaneous erections could possibly have a correlation as you say, since usually the explanation for spontaneous erections is a surge of estrogen, progesterone, and ...
Doddle's user avatar
  • 21
1 vote

book on human sexuality evolution

Wild connection by Jennifer Verdolin is good, it shows the source of many of humanities sexual behaviors, but it really depends on what you are looking for is there a specific area you are trying to ...
John's user avatar
  • 14.7k
1 vote

What are the distinct neurochemical components of sexual pleasure?

Sexual response is primarily related to nitric oxide and its products. All of the systems you mentioned play a role, however the core pathway is from touch stimuli, to oxytocin release, to nitric ...
liu's user avatar
  • 29

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