Why Are We the Only Human Species Left?

50,000 years ago, Homo sapiens was not the only human species on Earth. Neanderthals hunted across Europe. Denisovans survived in Siberia and the Tibetan Plateau. A three-foot-tall species lived on a remote Indonesian island alongside Komodo dragons. Homo erectus had already been walking the planet for nearly two million years. Today, all of them are gone. We're the only ones left — and the reason isn't the one you'd expect. In this video, we trace the disappearance of four other human species — Homo erectus, Neanderthals, Denisovans, and Homo floresiensis — through the fossil and genetic evidence, and dig into the real, more complicated answer to why Homo sapiens is the one still standing. CHAPTERS: 00:00 - Intro 01:23 - Homo Erectus: The Marathon Runner 03:24 - Neanderthals: The Misunderstood Cousin 05:46 - Denisovans: The Ghost in the Genome 07:43 - Homo Floresiensis: The Hobbit of Flores 10:24 - Why Did Homo Sapiens Survive? If you like deep dives into the hidden history of things you thought you already understood, subscribe — new videos every week. Which extinct human species would you bring back if you could? Let me know in the comments.