Why are we the only human species still alive?

Once Earth was home to a host of human species, from Neanderthals to hobbits. But today only we survive. Why?

Once Earth was home to a host of human species, from Neanderthals to hobbits. But today only we survive. Why?

"Two million years ago in Africa, several species of human-like creatures roamed the landscape. Some looked surprisingly similar to each other, while others had distinct, defining features.

In September 2015, another species was added to the list. Hundreds of bones discovered in a South African cave are now believed to belong to a new species, known as Homo naledi. There may well be many more extinct hominin species waiting to be uncovered." Click the Image to Learn More!