Dr. Melissa Ilardo
speaker
791 appearances
1 recordings
1 series
first heard May 2025
last heard May 2025
Dr. Melissa Ilardo’s voice in public audio — every appearance, attributed to the second.
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when you have people kind of mixing more outside their families, then it's very likely that even if you're carrying this deleterious variation, it's going to be kind of watered down by outside genetic material.
when you have people kind of mixing more outside their families, then it's very likely that even if you're carrying this deleterious variation, it's going to be kind of watered down by outside genetic material. But yeah, as soon as you have people too closely related to each other, you know, those things are ending up together and creating disease.
But yeah, as soon as you have people too closely related to each other, you know, those things are ending up together and creating disease.
Yeah, so it's definitely nature has a system built in that says don't do that.
Yeah, absolutely.
Yeah, absolutely. I think sometimes people kind of think we're done. We've reached this ultimate point of evolution. We've finished evolving. But as long as there are things that are affecting our ability to reproduce, we're going to continue to evolve. And especially once you have this introduction of new genetic variation.
I think sometimes people kind of think we're done.
We've reached this ultimate point of evolution.
We've finished evolving.
But as long as there are things that are affecting our ability to reproduce, we're going to continue to evolve.
And especially once you have this introduction of new genetic variation.
I mean, some of the greatest adaptations in the history of humans have come from the introduction of new genetic material.
I mean, some of the greatest adaptations in the history of humans have come from the introduction of new genetic material. So like the Tibetan high altitude adaptation is actually believed to have arisen from the crossing of humans with another early hominid group called Denisovans. So we essentially stole... the advantageous genes from this other group.
So like the Tibetan high altitude adaptation is actually believed to have arisen from the crossing of humans with another early hominid group called Denisovans.
So we essentially stole...
the advantageous genes from this other group.
And so maybe you'll start to see that happening again as you have a more globalized population where different groups of humans are creating these interesting phenotypes through the mixing of their genes that maybe will lead us to be more resilient as our planet is changing around us.
You know, I'm going to get myself in trouble because I don't remember exactly how long ago it was. More than 10,000 years ago. More than 10,000 years ago. But it only became advantageous when the ancestral population of Tibetans moved into these extremely high altitudes. So they kind of, you know, it was just sitting there waiting for a chance to be really advantageous.
You know, I'm going to get myself in trouble because I don't remember exactly how long ago it was.
More than 10,000 years ago.
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