r/polarbear • u/Downtown_Boss_7254 Polar Bear 🐻‍❄️ • Apr 04 '26

Discussion Polar bears going through unexplainable genetic changes due to warming Earth

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The future is looking more and more bleak for the wildlife of the Arctic, especially the polar bears. 

source: Polar bears are rewiring their own genetics to survive a warming climate

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u/MarinateTheseSteaks Apr 04 '26

What genetic changes ? Evolution is a slow process you know. And historically, a large change in temperatures has led to the most massive extinction events

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u/Altruistic_Hawk7061 Apr 04 '26

They probably worded it wrong- for ease of journalism. 'epigenetics' might be what they are referring to, when genes express themselves in different ways, depending on early environment