And then they start with the twin questions

And when it does it's not going to be that big a deal.

Identical twins have the same DNA.

I delivered identical twins.

(Laughter)

Their nature and their nurture are almost the same.

That would make them super similar, right?

I knew that I was different.

And this happens in every pair of identical twins separated at birth ever studied but much less so with fraternal twins separated at birth.

Now this became my new secret identity, and the first thing I did as a slayer was call my twin sister

I've been studying romantic love and sex and attachment for 30 years.

A complementary finding, from a completely different methodology, is that adopted siblings reared together the mirror image of identical twins reared apart, they share their parents, their home, their neighborhood, don't share their genes end up not similar at all.

Now, the cartoon is not such an exaggeration, because studies of identical twins who were separated at birth and then tested in adulthood show that they have astonishing similarities.

And here's what happens if you get a pair of people who share all their DNA namely, clones or identical twins.

On the other hand, other traits, like depression in men, or your preference for a particular political party, are more influenced by your environment than by your genes.

From now on, you and I are like the Siamese twins.

Vera wasn't kidding with that Siamese twins crack.

And you know, this is a country that over diagnoses certain mental disorders hugely.

In the immortal germ line of human beings that is, the eggs that sit in the ovaries they actually sit there in a state of suspended animation for up to 50 years in the life of each woman.

By definition, two people picked at random can't have correlations in the distribution of gray matter in the cortex.

Identical twins have had a profound impact on scientists' understanding of nature and nurture.

I'm going to talk to you today about what epigenetics is and how it impacts your life, even if you're not an identical twin.

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So that afternoon, I went back to my house, and my three year old identical twin daughters, Eden and Tybee Feiler, came running to meet me.

This would be sperm.

So some of what I've worked on, for example, is people who are conjoined twins two people within one body.

The reason that children with these kinds of bodies whether it's dwarfism, or it's conjoined twinning, or it's an intersex type are often normalized by surgeons is not because it actually leaves them better off in terms of physical health.

Siegmund and Sieglinde were Wälse's children, a wild and desperate pair of twins.

The second is the ability to, basically, move and create a movement and activity in the world.

By the way, 80 percent of all refugees and displaced people in the world are women and girls.

large fish everywhere, manta rays.

Here they are, the giraffes.

And the germ cells, we've learned already, these are the ones that produce gametes.

That 1 there means that there is a link from I to J.

Now I did all of that to kind of compare it to what we're going to cover in this video, which is the focus points or the foci of a hyperbola.

Is a pedophile.

I am most certainly not a pedophile.

Somehow she manages to keep her seven children alive, and a few months later, she gives birth to premature twins.

Oeufs. Un oeuf, des oeufs.

Also we look at deafness.

An illegitimate son, without name and without fortune.

Boil one egg.

The chicken laid an egg this morning.

the newborn was convulsing.

So I'll go into more depth in that in a future video.