Homo Erectus was unique from other species because they were the first to walk completely upright. They were also unique because they were the first ancestors who had bodies completely like ours. Finally they were unique because they were the first group to leave Africa. I know this because of the becoming human video https://www.youtube.com/watch?v=quwlSEpO0MI In the picture of the Homo Erectus skull it shows us it was buried under a lot of sand, dirt, and silt. the vieo tells us all about homo erectus and their lifestyle.
