Human evolution is a lengthy process of change of which people originated from apelike creatures.Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years.
One of the earliest defining human is the ability to walk on two legs evolved over 4 million years ago. Other important human characteristics such as a large and complex brain, the ability to make and use tools, and the capacity for language developed more recently. Many advanced traits including complex symbolic expression, art, and elaborate cultural diversity emerged mainly during the past 100,000 years.
Physical and genetic similarities show that the modern human species has a very close relationship to another group of primate species, the apes.
Most scientists currently recognize some 15 to 20 different species of early humans. Scientists do not all agree, however, about how these species are related or which ones simply died out. Many early human species certainly the majority of them left no living descendants. Scientists also debate over how to identify and classify particular species of early humans, and about what factors influenced the evolution and extinction of each species.
Early humans first migrated out of Africa into Asia probably between 2 million and 1.8 million years ago. They entered Europe somewhat later, between 1.5 million and 1 million years. Species of modern humans populated many parts of the world much later. For instance, people first came to Australia probably within the past 60,000 years and to the Americas within the past 30,000 years or so. The beginnings of agriculture and the rise of the first civilizations occurred within the past 12,000 years.
I got a link that will help you in your research; http://humanorigins.si.edu/edu...tion-human-evolution
Waiting to see your nest post.Good luck.