Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Discovery.

Time flies when you're learning super cool stuff.

I'm Nate.

And I'm Callie. If you're dropping in for the first time, welcome to

curiosity where we aim to blow your mind by helping you to grow your mind. If you're

a loyal listener, welcome back. Today you'll learn about how researchers have been able to grow embryos that have three genetic

parents, how European moles can shrink a tenth of their size during winter, and whether or not

being kind to diagnosed narcissists makes any changes in their behavior.

Without further ado, let's satisfy some curiosity.

Kallie, did you know that making children with three parents is not only possible

but it's actually already been done and the results were pretty surprising.

Yeah I'd be a little bit surprised too if it took three people to make a baby.

I'm just saying that's not something you can normally do.

Do we need to have like a conversation about the birds and the bees or?

I think I get how it normally works. Yeah, that's that's not the issue here.

Because of you know questions like that these experiments are really controversial and

they're actually illegal in a lot of countries around the world.

But researchers have recently shown that not only is it possible, but children with genetic

material from three parents seem to actually develop supremely similarly to children who have the traditional two parents.

Okay, I am absolutely hooked. You have to tell me how they did this.

All right, so this first happened in 2016 with a technique called mitochondrial replacement therapy or

MRT. Scientists took an egg from one woman and separated out the mitochondria, which is part of

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