How accurately do humans identify biological sex?

[Acorninspring]

I often see the claim that people are very good at identifying biological sex, regardless of what gender someone is presenting as. I agree with this. However, I did wonder if we actually had any empirical evidence to back it up? Any research studies etc? It would also be interesting, if for example, men and women were significantly different in their ability to identify biological sex.

a huge market demand from TIMs for training by women in how to come across as less masculine

There are places that show cross-dressing men how to dress / walk in a 'female' way. I suspect that TIMs, as they 'identify' as female feel that they don't need this.

So seeing Tara Hudson contorted, posed faking, pretending for a publicity shot is the 'real' but the shot of them built like a brick shit house, massive male entitlement and towering over their mum walking down the street is the 'unreal' one.

I thought of those pics as soon as I saw the Munroe conversation here. Tara passed VERY well in the posed (and possibly photoshopped) pics chosen to manipulate the public into moving them and their penis into a female prison. However further photos show that Tara is unmistakably male, very obviously so.

Oh, and these are the photos that I remember being used for the press campaign to shift Tara

www.dailymail.co.uk/news/article-3294717/Transgender-prisoner-moved-women-s-prison.html

*Come to Manchester Lass.

There are many transwomen out and about on a Saturday and Sunday.

They are ostensibly men doing a parody of a woman. Mind you they don't at all threaten me in any way. *

There is (was? I don't go out much nowadays) a club off Canal Street that admits Drag Queens and Transwomen for free (and charges everyone else).

Thus, those performing femininity are pleased to be charged entry as it means their performance is successful.

This is a very clever marketing ploy by the bar (who probably just charge almost everyone, anyway).

The very purpose of puberty, is to indicate when a human is gearing up for mating/be able to bear young. Females hips widen to bear a child, they menstruate to ovulate eggs to be fertilised, they develop breasts to feed offspring.

Males testicles enlarge and begin producing sperm/semen, they develop broader shoulders, voices deepen, muscle mass increases.

Humans are inherently able to distinguish between the two, for the purpose of procreation, it is a basic human instinct.

Anyone who argues it is not, or that you cannot tell in almost all cases whether someone is male or female (without surgery etc being used to mask ones true sex) is delusional, no study is needed. Mankind and our increasing population is the best example there is.

I agree that passing in real life is 99.99% a myth.
I knew a very lovely TIM who passed very well... almost. We (myself, dh & a friend) clocked them immediately, though of course this didn't effect how we treated them, they were welcomed into the family.

I agree with the previous posters, it was the uncanny valley thing. I felt like something was off, like I was being tricked, something I couldn't articulate that made me take closer notice. I didn't think they were a danger, they were a lovely person.
I second guessed myself based on other contextual information - mainly the person they were dating. Stereotypical 'gay panic' guy, I honestly was afraid for the TIM's safety.

I assume my comment has already been said by a pp- but of course human can detect sex by eye 99.9% of the time.

Why is SMG moaning about misgendering. This is a feminist forum, there's no such thing as misgendering, that's trans talk. Correctly identifying a person's sex is important to feminists as feminism is for women.
No, most people won't misgender in work because they are scared.
That's patriarchy for you.

Apologies for the rude comment the other day @SuitedandBooted

Biology prof here, so I have huge issues with the whole sex recognition business. The underlying sex is so hugely obvious that, for instance, facial hair on a transman just looks glued on and breasts on a transwoman seem prosthetic. The hairline is different, though that can be altered. The line of the cheekbones relative to the jaw is different. The neck is different. Hands, also as has been mentioned, and feet. The angle of the thigh relative to pelvis and relative to lower leg. It just goes on and on.

So with all the automatic processing ticking all the boxes on one side, the mental gymnastics necessary to use a preferred pronoun which contradicts all that is a major effort. He-click-hum-no-wait-not-he-something-else-she-no-no-no-he-no-no-just-told-me-they. I don't mind doing the gymnastics for kindly people, and it's probably helping prevent Alzheimers, but it is a fact that it's not completely easy.

I agree, Quixote9. OTOH, identifying a person by their biology is stunningly easy. But we have to lie to validate another person's feelings.