Scientists have now identified over 20 human species lived alongside Homo sapiens—including the small-brained Homo naledi.

Scientists have now identified over 20 human species lived alongside Homo sapiens—including the small-brained Homo naledi.


April 17, 2026 | Allison Robertson

Scientists have now identified over 20 human species lived alongside Homo sapiens—including the small-brained Homo naledi.


A Much Bigger Human Family Than We Thought

For a long time, we thought human history was simple—just us, slowly evolving into who we are today. Nice, clean, and a little boring. But scientists now know that’s completely wrong. There weren’t just a few human species, there were over 20—and homo sapiens lived alongside more than a few of them.

Scientist with an ancient human species on a screen behind himCicero Moraes (Arc-Team) et alii, CC BY 4.0 , via Wikimedia Commons

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Meet the Extended Family

Today, researchers recognize more than two dozen different human species in the genus Homo. That includes famous ones like Neanderthals, but also lesser-known groups like Homo floresiensis, Homo luzonensis, and Homo naledi.

And we didn't just exist—we crossed paths.

The model of a Homo floresiensis woman's head at the Natural History Museum in London, England.Emoke Denes, Wikimedia Commons

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We Existed At the Same Time

What makes this even more interesting is that many of these species lived at the same time. That means they didn’t just exist separately—they likely saw each other, competed, and sometimes even interacted.

We didn’t evolve in isolation.

This image regards the second version (2.0) of Archaeological Forensic Facial Reconstruction of the individual LB1 of the species Homo floresiensis. It has been released for the open source exhibitionCicero Moraes et alii, Wikimedia Commons

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Homo sapiens Were Late to the Party

Modern humans (Homo sapiens) only appeared around 300,000 years ago in Africa. By the time we showed up, other human species had already been around for hundreds of thousands of years.

It was a crowded planet.

a man in a red and white striped shirtLook Studio, Unsplash

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A Crowded Ancient World

At one point, the Earth was home to multiple human species at the same time. Neanderthals were in Europe, Denisovans in Asia, and other species scattered across Africa and Southeast Asia.

We met at least eight different human types.

Model of Homo neanderthalensis elder man in The Natural History Museum, ViennaJakub Halun, Wikimedia Commons

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We Met More of Them Than You Think

Scientists now believe that Homo sapiens encountered at least eight other human species as they spread across the globe. That’s not just a quick meeting—that’s repeated contact over thousands of years.

Neanderthals weren’t the only ones.

Lebend-Rekonstruktion im Neanderthal-Museum (Erkrath, Mettmann) eines Homo sapiens neanderthalensis „Mr. N“ (Ausschnitt des Originalfotos)Neanderthal-Museum, Mettmann, Wikimedia Commons

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Neanderthals Were Just the Beginning

The most well-known group we met were the Neanderthals, who lived across Europe and western Asia until about 40,000 years ago. We didn’t just meet them—we interbred with them.

Until another group entered the story.

Model of Homo neanderthalensis child in The Natural History Museum, ViennaJakub Halun, Wikimedia Commons

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Then There Were the Denisovans

Discovered in 2010 in Denisova Cave, Siberia, the Denisovans are one of the most mysterious human groups. We know them mostly from DNA, but they clearly interacted with modern humans.

Humans came in all shapes and sizes.

Денисова пещера:   Солонешенский район, Алтайский крайXenochka, Wikimedia Commons

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A Tiny Human With Big Questions

In Indonesia, scientists discovered Homo floresiensis, nicknamed the “Hobbit,” in 2003. These small-bodied humans lived until about 50,000 years ago, meaning they may have overlapped with modern humans.

The list kept growing.

Homo floresiensis -  aproximação facial 3D digital.Cicero Moraes, Wikimedia Commons

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Even More Species in Southeast Asia

More recently, Homo luzonensis was discovered in the Philippines in 2019. Like H. floresiensis, they had a mix of ancient and modern traits, showing just how diverse human evolution really was.

Africa was just as complex.

A mostly hypothetical reconstruction of Homo luzonensis, a newly-described species of primitive human from Luzon, Philippines.Luzonensis, Wikimedia Commons

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Africa Had Its Own Surprises

For a long time, Africa was thought to have fewer known species. But new discoveries are changing that. Fossils across the continent show that multiple human groups lived there alongside early Homo sapiens... One of which really puzzled scientists.

Satellite composition of the whole Earth's surface.NASA Earth Observatory (NASA Goddard Space Flight Center), Wikimedia Commons

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Enter Homo naledi

One of the most surprising discoveries came in 2013, when fossils of Homo naledi were found in the Rising Star Cave system in South Africa by a team led by paleoanthropologist Lee Berger.

It didn’t look like it belonged.

Lee Berger giving a tour in 2006.Profberger at English Wikipedia, Wikimedia Commons

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A Strange Mix of Old and New

Homo naledi had a small brain—closer in size to earlier humans—but also showed more modern features in its hands, feet, and teeth. It didn’t fit neatly into any category.

That changed everything.

The Homo naledi facial reconstruction, performed with the coherent anatomical deformation techniqueCicero Moraes (Arc-Team) et alii, Wikimedia Commons

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And It Wasn’t That Old

At first, scientists thought Homo naledi must be very ancient. But dating later showed it lived between 236,000 and 335,000 years ago—at the same time as early Homo sapiens.

Evolution wasn’t linear.

A view of command central set up at the entrance of the Rising Star Expedition cave in South Africa that was found to contain more than 1,500 ancient human bones.Simon Fraser University - University Communications, Wikimedia Commons

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Two Very Different Humans, Same Time

This means that small-brained Homo naledi and early modern humans were living at the same time in Africa. That’s a huge shift from the old idea that evolution always moves forward in a straight line.

And they may have crossed paths.

Homo Naledi, New Species, Unveiled in South Africa JOHANESBURG, SOUTH AFRICA - SEPTEMBER 10 (SOUTH AFRICA OUT): Professor Lee Berger reveals the discovery of a new species of human relative, Homo Naledia at The Cradle of Human Kind on September 10, 2015 at Maropeng in Johannesburg, South Africa.The Times, Getty Images

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Did They Ever Meet?

There’s no direct proof yet that Homo sapiens and Homo naledi interacted. But given that they lived in the same region at the same time, it’s definitely possible.

But this wasn’t a simple timeline.

Silhouette of Person at Sunset OutdoorsVietnam Photographer, Pexels

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A Pattern Starts to Form

When you look at all these species together, a pattern emerges. Humans weren’t replacing each other one by one—they were overlapping, interacting, and sharing the planet. Even still, some questions are still open.

Portrait of a Man in a CaveBeyzanur K., Pexels

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Not All of Them Interbred

Unlike Neanderthals and Denisovans, we don’t have DNA evidence that Homo naledi interbred with modern humans. But that may be because we haven’t recovered usable DNA yet. This story isn’t finished.

The spread and evolution of Denisovans on the basis of evidence 2014John D. Croft, Wikimedia Commons

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Discoveries Are Still Happening

Scientists are still finding new species and rethinking old ones. Advances in DNA analysis and dating techniques are constantly changing the picture.

In fact, the "family tree" doesn’t really work anymore.

https://ortogonline.com/doc/pt_br/OrtogOnLineMag/7/Harbin.htmlCicero Moraes, Wikimedia Commons

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A Much Messier Family Tree

Instead of a straight line, human evolution now looks more like a tangled web. Different species branched off, overlapped, and sometimes disappeared without a clear reason.

We were just one of many.

Man in White Dress Shirt Standing Near Brown Wooden Wallcottonbro studio, Pexels

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A World Full of Humans

It’s strange to think about, but there was a time when “human” didn’t mean just us. There were many kinds of humans, each adapted to their own environment.

But not all humans made it.

Crowd Strolling Near Taipei's National Concert HallKenneth Surillo, Pexels

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Why Did We Survive?

That’s still one of the biggest questions. Why did Homo sapiens survive while all the others disappeared? Climate, adaptability, and even luck may have played a role. 

We are the only remaining human species from a once crowded world full of them.

Brunette Woman with Camera Posing in Parkemre keshavarz, Pexels

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