From brown bear ancestors to the kings of the Arctic — this is the incredible 500,000-year journey of the polar bear. 🐾🧊 They once ruled from Siberia to Greenland, perfectly adapted to frozen seas and relentless winters. But today, melting ice is pushing this iconic predator toward danger, with only around 26,000 left in the wild. Watch the evolution, rise, and struggle of the Arctic’s most famous hunter — and why its story matters now more than ever. 🌨️🐻‍❄️ Follow Explore Earth for more wor