Two million years ago, there were many human species live on the earth. They looked similar to each other.
About 30,000 years ago, most of species were extinct. There were only three of them, the Neanderthals, the Denisovans, and the "hobbits". Because of living in the island, the hobbits extinct in a volcanic explosion
The "hobbits" from the Indonesian island of Flores.
The Neanderthals in Europe and western Asia
The Denisovans in Asia
One of the reasons that Neanderthals will disappear is that they live in an isolate way and in small groups.
The Homo Species live in tribes. They used innovation and competition to get them together against outside dangerous.
Both Neanderthals and Us gradually had the ability to communicate.
They can communicate in simple sounds, musical tones, and rhythmic movement.
Until that time, Neanderthals and Modern human have same way in life. Their population was half and half. They both can communicate and fell in love with each other.
Scientist said that at that time, any other species could have taken our place.
But they still failed. With the exploded of our population, other species finally disappear.