Tom+Evolution

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 * Introduction:Did do you ever asked yourself"Where do we humans,actually come from?.Well with this thought many theories and ideas came up. The theory of human evolution is all about about the lives of our "possible" ancestors,the way they lived and how we progressed in social,mental and physical terms.This essay is based on my learning I have completed during our unit on evolut****ion and is supposed to be a respond to our main idea:According to the theory of evolution,many changes in humanity have enabled us to make Progress..I personally don'tbelieve in the theory but I thought that the unit was quite**
 * difficult,especially if you believe in the christian creation.**

**A.Afarensis...The first to walk upright 4**
They are thought to have lived about 4 to 2.9 million years ago.

Physical:A.afarensis were about 125cm high,weight about 30 -50 kilos and had a brain size of about 450cm3,which is about 30% of modern humans.They walked upright on two feet.Males were about twice as big as females.

Social:The Australapithecus Afarensis lived together in small groups.They also used "very simple"tools in search of food,but that was in form of rocks and bones.

Environment: Based on the fossils, the A.afarensis is thought to have lived,in a grassy and hilly area,including many trees and small lakes.

Special Facts:A. Afarensis have been only found within northern Africa,but especially in Hadar .The most famous fossil is the one of Lucy,which was found by Donald Johnson and colleagues. Lucy is named after The Beatles' smash hit "Lucy in the sky of diamonds",which the team played over and over again to celebrate their finding.What makes this fossil famous is the fact that it was the oldest fossil for a long period of time,as Lucy is thought to have lived 3.2 million years ago. The A.afarensis was the first creature which walked upright.They used rocks to kill and get the meat out of the animals.

Homo Habilis...First stone tool user
The homo habilis discovered a very simple tool,which is the hand axe.In that time a hand axe,wasn't more an ordinary sharp stone.But this tool changed their lives completely,making hunting and surviving easier. It is also considered that H.Habilis was the first hominid to have an communication among each other.The homo homo habilis only lived in eastern Africa,in very dry places,containig only some high grass and a couple of trees.They were

Homo Erectus...First one to use fire
The homo erectus was the first hominid having a social relationship among each other, living and hunting in groups and also communicating with each other. The Homo Erectus was a big milestone in the area of using tools,as he discovered something,that positively changed their lives,but also the lives of the following generations of hominids.Fire!.Fire

was very important because it made surviving,and hunting a lot easier.Many inventions today couldn't exist without fire.The brain size of the homo erectus ranged from 850 to 1100 cm3,their body size up to 1.8 meter for male and up to 1.55 for female.They lived about 1.9 million years ago.

**Homo Sapiens ( one with the biggest brain)** The homo sapiens first accured after the ice age,and brought deseases with them.They lived in eastern africa.They had a body weight of 60 to 80 kilos and a brain size of about 1355 cc on average.The trend continiued also with the homo sapiens, that they could have a better understanding of using tools. The Home Sapiens originate from eastern Africa,but about 60,000 years ago of homo sapiens left africa and spreaded all over the world.Genetic materials prove that only 10 to 20 homo sapiens reached the american continent.This means that all human being,not mattering if,black,white, Chinese,or indians originate from one common ancestor.(Wikipedia)

Homo Sapiens Sapiens (modern humans)
Homo Sapiens Sapiens are basicly modern humans. They have the biggest brain size of all hominids,allowing them a good understanding of their environment and using and inventing more and more affective tools.They are the most powerful creatures on planet earth allowing them to rule the earth.To be honest with you there's no point about telling you about their appearence,because you see them everyday.

Conclusion I really enjoyed learning about hominids,and looking at how the world still looked like at that time.I personally don'tbelieve in the theory but I thought that the unit was difficult,especially if you believe in the christian creation.