How many human races are extinct?

We're not sure about the DNA of a lot of the hominins that preceded homo sap. sap., so its really tough to say how many of the species no longer existing could be called human by the above definition. New discoveries in this area are made all the time. Stay tuned! read more

His descendants are alive in many humans today. Of course, the actual Neanderthal specimens are long gone, much like the auroch, the ancester of all cattle alive today. In that sense, you could say that many species are no longer around, hence extinct. read more

I would consider the Neanderthals and Denisovans to be extreme races of Homo sapiens rather than separate species, since they were fully interfertile with us, and they both became extinct as separate groups although many of their genes were passed on in the general population. read more

For anthropogenic extinction, many possible scenarios have been proposed: human global nuclear annihilation, biological warfare or the release of a pandemic-causing agent, dysgenics, overpopulation, ecological collapse, and climate change; in addition, emerging technologies could bring about new extinction scenarios, such as advanced artificial intelligence, biotechnology or self-replicating nanobots. read more