Why Did Other Human Species Vanish?

For most of human history, you weren't the only kind of human on Earth. Neanderthals, Denisovans, the tiny "Hobbits" of Flores, and the mysterious cave-dwelling Homo naledi all walked the same planet — some for hundreds of thousands of years. Then, one after another, they disappeared. Only one human species made it to today: yours. In this video, we break down what actually happened to the other human species — from war and competition, to climate collapse, disease, and interbreeding — and why scientists still don't agree on a single answer. ⏱️ Topics covered: Who were the Neanderthals, Denisovans, and Homo floresiensis The strange discovery of Homo naledi in a South African cave The leading theories: war, competition, climate change, disease, interbreeding What percentage of your DNA might come from a species that no longer exists 🔔 Subscribe for more deep dives into human evolution, ancient history, and the science of what makes us human. #humanevolution #neanderthal #anthropology