Homo Ergaster

I think Homo Ergaster was the stage in Evolution that was the most significant because they had the ability to sweat, which was good in the way that they wouldn't blow up if they got over heated. They were starting to resemble more lie humans; less body hair and wider noses. They developed the white in their eyes which allowed them to have more communication with others. Overall, they are very smart and they were very aware of there environment.