How Did Homo Sapiens Outcompete Every Other Human Species, and Are We Special? — Here’s Why We’re the Last Humans Standing

A long time ago, there were other humans living side by side with us. Species like Neanderthals, Homo Erectus, Denisovans, the Hobbits, and more existed in different parts of the world, while Homo sapiens were still evolving in Africa. So many people have wondered, what happened to the others, and why are we the only ones left?

The answer is not simple; it is not because we are stronger than all of them, which we’re not. It is not because we are faster, because we’re not. Is it because we have a larger brain than any other human species? No, we don’t. So, what made us so special that we were able to outlive all of these other human species when some of them have existed for millions of years before us?

Smarter Tools, Art, and Culture Gave Us an Edge

The answer to the question, “Why are we the only ones left” is a combination of different evolutionary milestones and events in our past. First, there was the development of more advanced tools during the Middle Stone Age. Although the other hominins were also using stone tools far earlier than we did, we were more creative and innovative.

Homo sapiens were able to invent different new ways to make and utilize tools. We have used sharp flakes and even added handles to our weapons. These are signs our intellect was growing, long before we moved out of Africa, to face the other species in their own environments.

If you are not familiar with this idea, a theory called “Out-of-Africa” simply states that we modern human species, evolved from Africa before migrating to Europe, Asia, and the rest of the world.

There are also some clues that we crafted jewelry and added paint to our bodies and tools, which is a sign of a developing culture and tradition. These are symbolic behaviors that highlight a major shift in our cognition and have likely contributed greatly to our success in the vast African continent, which predates our global expansion.

Read more: Scientific American

We Traveled Far and Mixed with Others

Why Are We The Only Humans Left?

Homo sapiens existed for an estimated 200,000 to 300,000 years. However, we only ever moved out of Africa successfully, about 70,000 to 50,000 years ago. This is because earlier migration failed due to our lack of ability to adapt to different environments.

But, just before the successful migration, modern humans learned to develop their culture and how to adapt to different surroundings all over Africa. From the seas and the jungle to open savannas and mountainous regions, our ancestors were flexible ecologically.

So, by the time they ventured out, they were better prepared not only in their skills but also in their numbers. One of the strengths of humans is that we have a larger population and have mixed a lot with different other groups, like Neanderthals, which allowed our genes to combat a lot of different diseases, with more genetic diversity, and also adapt to changing climates.

Cooperation, Sharing, and Strong Societies

Other human species were also social, as they existed in different-sized groups and tribes. However, the modern human species was the best at this game; we were ultrasocial. We are so social that we were able to care for each other’s offspring within our groups.

Over time, we learned how to share responsibilities through culture and traditions that are passed down from generation to generation. We lived and hunted in groups, allowing us to hunt down bigger animals like mammoths, and then shared all the food with the rest of our people.

Anthropologists say these strong connections are what made us more flexible and better at surviving than more isolated groups, who most likely faced genetic bottlenecks, which led to more frequent diseases and an inability to adapt.

Our abilities to communicate, innovate, share knowledge, and cooperate in greater numbers are most probably what made us the last human species standing.

Read more: Live Science

Are We Special—or Just Lucky? It’s a Mix

We're the Last Humans Left

So, are modern human beings special? The answer is more likely yes than no. We have developed so many traits that other human species were not able to match. However, they are unique in their own ways, too. It is just that what we are good at, which is being social and cooperating with each other, is what made us ultimately win in the end.

Yes, there are other human species that are bigger, stronger, faster, and have larger brains. But the combination of traits we have developed as a species outweighs those individual characteristics.

However, it is better not to think of us as much better than the rest. In reality, there was a big element of luck that played. We existed in a time and place where we were able to grow because of the environment, climate, and abundance of resources. We also mixed with Neanderthals and Denisovans, so some of our success could be attributed to their genes.

In other words, while our combination of traits played a crucial role, evolution is not linear and not as simple as who is “better”. It is a mix of natural selection, the ability to adapt, environmental circumstances, and the right chances.

Author's Final Thoughts

Today, Homo sapiens is the only remaining human species, but a long time ago, there were more. What helped us survive and not the others is a combination of different skillset that we developed over time, and could not be attributed to just one single reason.

Even the other species, like Neanderthals and Denisovans, who mixed with us, are part of that evolutionary journey. We may have outlasted them all and are the only humans left, but we carry with us the legacy of our relatives in our very genes, ideas, and stories.

Read next: Why Did So Many Other Human Species Vanish Around 50,000 Years Ago? — Here’s What Scientists Think Happened

References & Further Reading

Gilpin, W., Feldman, M. W., & Aoki, K. (2016). An ecocultural model predicts Neanderthal extinction. PNAS. https://doi.org/10.1073/pnas.1524861113

Van Holstein, L. A., et al. (2024). Diversity-dependent speciation and extinction in hominins. Nature Ecology & Evolution. https://doi.org/10.1038/s41559-024-02390-z

Hawks, J., Hunley, K., Lee, S.-H., & Wolpoff, M. H. (2000). Population bottlenecks and Pleistocene human evolution. Molecular Biology and Evolution. https://doi.org/10.1093/oxfordjournals.molbev.a026233

Vaesen, K., Scherjon, F., Hemerik, L., & Verpoorte, A. (2019). Inbreeding, Allee effects and stochasticity might be sufficient to account for Neanderthal extinction. PLOS ONE. https://doi.org/10.1371/journal.pone.0225117