yoobin+kimHomoin

3 Over millions of years the human species have changed in both their physical appearance and their intelligence. A great way to find out where we come from is to look more closely at the remains of bones.

__Australopithecus__ They were tall and thin. Their brains were 30% smaller than ours. Australopithecus were small and thin. they were about 1.2-1.4m tall. Males were up to 50% bigger than females. It is difficult to reconstruct the social behaviour of extinct fossil species. However, the social structure is likely to be comparable to that of modern apes, given the average difference in body size between males and females (known as sexual dimorphism). Although there is considerable debate over how large the degree of sexual dimorphism was between males and females of A. afarensis, it is likely that males were relatively larger than females. If observations on the relationship between sexual dimorphism and social group structure from modern great apes are applied to A. afarensis then these creatures most likely lived in small family groups containing a single dominant male and a number of breeding females.

Probably lived in family groups with 1 male and several females who had babies. They looked like a monkey. They lived in the Jungle in Africa.  __ Homo habilis __ Homo habilis has often been thought to be the ancestor of the more gracile and sophisticated Homo ergaster, which in turn gave rise to the more human-appearing species, Homo erectus. Debates continue over whether H. habilis is a direct human ancestor, and whether all of the known fossils are properly attributed to the species. However, in 2007, new findings suggest that the two species coexisted and may be separate lineages from a common ancestor instead of H. erectus being descended from H. habilis. Homo habilis invented stone flakes which they made by hitting one stone against the other. They used the stones to crush animals. They also used the stone to dig out tubers.  __Homo Erectus__ Homo Erectus brain was bigger then homo habilis' brain. They were 1.79m tall and the males were 25% bigger than the females. Their brain is bigger then the brain of Homo habilis. They had big brow-ridges and their cheekbones did not stick out. They were about 1.79m tall. They were more healthy then humans. The Acheulean tool industry first appeared around 1.5 million years ago in East Central Africa. These tools are associated with Homo ergaster and western Homo erectus.  __Homo Sapiens__  Humans are the most developed kind of monkey. They have a brain which can think logically. Humans can talk.  Humans are noted for their desire to understand and influence their environment, seeking to explain and manipulate phenomena through science, philosophy, mythology and religion. This natural curiosity has led to the development of advanced tools and skills, which are passed down culturally; humans are the only species known to build fires, cook their food, clothe themselves, and use numerous other technologies. The study of humans is the scientific discipline ofanthropology.

__Homo Sapiens Sapiens __ <span style="background-color: transparent; color: #000000; display: block; font-family: 'Comic Sans MS'; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0px; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">This is the Human which lives not in the forest but in the city. This humans live in groups. They walk on two feet and use their hands to work with tools. These humans have a big brain. They use fire to cook their food. <span style="background-color: transparent; display: block; font-family: Times; font-size: medium; line-height: normal; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px;"><span style="background-color: transparent; color: #000000; display: block; font-family: 'Comic Sans MS'; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0px; text-decoration: none; vertical-align: baseline; white-space: pre-wrap;">Humans have a highly developed brain, capable of abstract reasoning, language, introspection, and problem solving. This mental capability, combined with an erect body carriage that frees the hands for manipulating objects, has allowed humans to make far greater use of tools than any other living species on Earth. Other higher-level thought processes of humans. <span style="background-color: transparent; color: #000000; font-family: Comic Sans MS; font-size: 11pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">We can see that over millions of years the human species have changed a lot. In my opinion the humans species will continue to make progess and change. I think that change is important for our planet to make it a better place to live.