Every blue-eyed person shares one ancestor
Cuts · English · @cuts_en ·
Fact of the day: the origin of blue eyes. AI-generated.
Transcript
0:00 If you have blue eyes,
0:01 you're related to every other blue-eyed
0:03 person on Earth.
0:04 Scientists traced blue eyes back to a single
0:07 genetic mutation that appeared in one
0:09 individual somewhere between six and ten
0:12 thousand years ago.
0:13 Before that, everyone had brown eyes.
0:15 The mutation switched down the production of
0:18 melanin in the iris,
0:19 turning it blue.
0:20 Because it comes from one original ancestor,
0:23 all blue-eyed people share a tiny sliver of
0:26 the same DNA.
0:27 It's a family reunion millions strong.