Evolution has also ensured that development of reproductive anatomy is tightly orchestrated and aligned. Otherwise an organism could not play the vital reproductive role of being a male or female. Sex is not a pick-n-mix, or lego assembly or random parts.

Indeed. Some species are very sexually dimorphic and some are not.

For example, we can see peafowl males and females and griffon vulture males and females.

Still just males and females though.

You do not need to listen to me. You can do two things:

1) Read Fuentes in his explicit political and ideological aims of pushing sex as a spectrum.

2) Look in the peer reviewed biology to see that only two sexes (male and female) have ever evolved.

Fuentes is talking utter nonsense.

Only two sexes have ever evolved and humans are trivially classified as male or female. - with a few exceptions who have severe development disorders. These people need a little more thought in classifying as male or female.

The clear cut seperation in the sexes is gamete type. We have evolved body types that support one or the other.

Fuentes also has an explicit political aim in his obfuscations about sex: recognition of cross-dressing woman as actual women - so they can have "justice" in society - meaning they can enter women's protected spaces and play in their sports.

You could easily prove me wrong by showing what evidence there was of murders at the time of first suspicions of Letby.

At the point of her suspicion, none of the evidence that convicted her had been "discovered". That arose after she became the suspect. There was no evidence of any unnatural deaths even.

And there was no evidence of any murder or of any person's involvement in a murder.

If I am wrong, what was that evidence?

It has all the elements of reverse engineering. When Lucy was first suspected - there was **zero** evidence against her. A narative was then constructed around every death to suggest she was responsible. Every narrative created was faulty - as is now very clear.

The stench has been there from the start.

"Concerns" were raised long before there was the slightest evidence. And to date, there is no direct evidence any baby was murdered and Letby was responsible.

More witch hunting of this poor girl.

Once again, England snatch defeat from the jaws of victory.

@grok What should I say in response?

Fuentes is such an obscurantist. Of course there are just two sexes. And humans are male or female.

The fact that there are a tiny handful of people who have development conditions that make their sex not immediately obvious does not change this.

I am slowly and reluctantly coming to the unfortunate conclusion that you may be unhinged.

And the funny thing is that they are perfectly fine as they are.

I have been taling to transvestites etc for decades. I used to run a crisis telephone line where we had quite a few men who liked to present in women's clothes.

I have no idea what tou are on about. Oc course peopel adopt social identities in many ways. In teenagers, music-related sub-cultures have been common for decades - mods, rockers, punks, new romantics, goth, non-binary, trans etc.

Of course social identities exist n all sorts of ways - from religion to sports fan, music genre sub-cultures (Goths etc).

The very notion of being "transgender" was only conceptualised a few decades ago. Before that we have transsexuals and transvestites to describe male cross-dressing fetish.

Utter nonsense. But busy right now to explain why. But basically being transgender is a modern social identity. You could not more be trans in roman times than you could be a punk rocker.

We are male or female. Within those two groups there can be much variation. But not between the two groups. That is the anti-scientific bit.

So-called "intersex" is an old-fashioned misnomer for when things go wrong in the development of our sex. Most typically you end up with a sterile male or female. They are disorders of development.

That is why we have males and females evolve in nature - male and female are the sexes that support sperm or eggs respectively.

And only two sexes have ever evolved. Two discrete sexes.

Of course sex is not socially constructed. That is bonkers!

Sex is a reproductive strategy abotu sharing genomes between two individuals to create an offspring.

In animals like us, that sharing has to be between two very different individuals: one produces sperm - the other, eggs.

Can you name anyone we both might know (like a celebrity or sportsperson) who is not male or female?

Do you want to swap recipes?

The word I used was accuracy. Which is the right word.

The Sex Redefined opinion piece?

It does not redefine what a sex is.

For a start.