And the germ cells exist as part of your reproductive organs.

So let's say those are the germ cells.

The penis is one of the male reproductive organs.

Usually through the reproductive organs.

No males at all.

And in Europe, there's certain parts of Europe, where we're seeing a four fold increase in certain genital birth defects.

In a female, they would be involved in the ovaries.

If I talked about other species, they might have 10 chromosomes or they might have 5 chromosomes.

(Laughter) Right?

It's not just in the poor world that poop can save lives.

And very importantly, with the introduction of sexual reproduction that passes on the genome, the rest of the body becomes expendable.

Tropical rainforests arose, sparking new layers of interdependence.

They begin to self replicate.

She's a she, and we raise her to be a her.

The men and women are different.

You can have culture without exchange.

Audience Member Her uterus would be torn. Christopher McDougall

I don't know.

And with that... my reproductive and sexual function.

Whether or not which direction they're flipped is completely random, and that's what adds to the variation.

So let's envision what the system might look like.

How does evolution do cumulative, combinatorial things?

Yo, I thought I was gonna see some, like, vaginas.

The Vietnam protests, the commemoration of all that died in the pandemic of AlDS, the march for women's reproductive rights, right up until almost the present.

So in a male, you have some germ cells, so some of these cells turn into germ cells.

Agnes was a woman who was cut when she was a little girl, she was female genitally mutilated.

I didn't say she actually painted vaginas.

Where everything was displayed in poorly labeled roach proof bins.

Not like any vagina I ever saw.

That is to say, they specialize with respect to reproduction.

Over time this produced every one of the billions of species of life on earth.

And in fact, this idea that the cells of the reproductive tract are the only place where the Y functions, has led, in turn, to the notion that the genomes of men and women are, apart from the reproductive tract, functionally, maybe even morally equivalent.

So it's only been 20 years that women have been allowed to run the marathon.

Earth creates its own magnetic field.

So I had a very short deadline for a competition.

Pistols.

Calendar in Mobile Device

Notes in Mobile Device

I've seen girls starving themselves to death in America in institutions to look like some idealized version of themselves.

An internal service error has occurred

In fact, you could say that the inevitability of the death of our bodies enters in evolutionary time at the same moment as sexual reproduction.

Most of the time, it'll break the organism.

Nassau groupers in Belize in the Mesoamerican Reef.

I said, some of her paintings looked like vaginas.

She shows a shy disposition.