Grizzly–polar bear hybrid
Subject in Nature
Grizzly–polar bear hybrid has come up in 1 episode across 1 podcast in TMT, including Huberman Lab. 1 person has made recorded remarks about it.
What people said
Beth ShapiroAmerican evolutionary biologist and Chief Science Officer at Colossal Biosciences, formerly a professor at UC Santa Cruz and Howard Hughes Medical Institute investigator
Shapiro reports that brown bears in North America carry polar bear ancestry from interbreeding about 20,000 years ago, but polar bears show no brown bear ancestry, likely because hybrids cannot hunt seals.
“if you have brown bear ancestry, you don't have perfectly white fur and you cannot successfully hunt seals”
Huberman Lab: Bringing Extinct Species Back to Life | Dr. Beth Shapiro (Oct 5, 2026) · Listen from 18:05
Podcasts
- Huberman Lab · 1 episode
Episodes
Bringing Extinct Species Back to Life | Dr. Beth ShapiroHuberman Lab · Oct 5, 2026 · 2 h 16 min
Andrew Huberman talks with evolutionary biologist Beth Shapiro about species concepts, Neanderthal DNA, Colossal Biosciences' de-extinction projects, genetic rescue, and the ethics of human genetic selection.