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The Real Reason Humans Lost Their Fur

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The Real Reason Humans Lost Their Fur

157 просмотров · 2 дн. назад
storyaura
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157 просмотров · 2 дн. назад
Out of 6,400 mammal species on Earth, humans are the only "Naked Apes." Why did we lose our thick, protective coat of fur while chimpanzees kept theirs? In this 5-minute documentary, we explore the science of human thermoregulation and skin evolution. From Nina Jablonski's landmark 2000 Penn State study to the physics of evaporative sweating and persistence hunting on the African savanna, discover how shedding our fur gave humans the ultimate biological cooling system — allowing us to outrun horses, overheat prey, and fuel the human brain. TIMESTAMPS: 0:00 - The Naked Ape Anomaly 0:50 - Human vs. Horse: The Heat Race 1:40 - The Limits of Fur & Panting 2:30 - How Sweat Glands Replaced Fur 3:20 - Persistence Hunting on the Savanna (Jablonski Study) 4:15 - Cooling the Human Supercomputer SOURCES: • Jablonski, N. G., & Chaplin, G. (2000). The evolution of human skin coloration. Journal of Human Evolution. • Bramble, D. M., & Lieberman, D. E. (2004). Endurance running and the evolution of Homo. Nature. #HumanEvolution #Biology #ScienceDocumentary #HumanEvolution #Biology #ScienceDocumentary #Anthropology #ScienceExplained #viral #new #newshorts #newfeeds #newvideo #viralfeeds #viralshorts