The story of human evolution begins with climate change.
About 15 million years ago, a tropical forest track began to dry up when the amount of rainfall decreases.
Path that stretches from the east coast of Africa through the Arabian and India to Southeast Asia.
The
dense forests that thin out and disappear all over the place except in
the wettest areas are located on the banks of rivers and lakes so
terbentanglah vast area of savanna and open forest land.
Early in the evolution of ecological changes occurred Ramapithecus, the link between humans and other primates-lam.
A. Australopithecus
Australopithecines Australopithecus included in the class.
The earliest species of Australopithecus Australopithecus anamensis is emerging in eastern Africa about 4 million years ago. This species evolved about 3.7 million years ago to Australopithecus afarensis. Fossils found at Hadar in Ethiopia.
Characterized by:
•
• 107 cm tall weighing about 27 kg, • female sex, and given the name
"Lucy" • brain size as large as the size of the brain simpanze. 2. Australopithecus africanus About 3 million years ago Australopithecus africanus Australopithecus afaren sis to replace.
With characteristic - features:
• Fossils of these creatures have a more rounded skull and • a slightly larger brain than Australopithecus afarensis. • But in other respects, there is no difference. 3. Homo habilis Homo habilis is the oldest human species.
With characteristic - features:
• have a much larger brain than previously, but only half the size of modern human brains. • • molar smaller and less protruding face than the australopithecines. • Their diet of fruits, insects, other plants and meat in addition. • Homo habilis males have a much larger size than the female Homo habilis. 4. Homo erectus more than 1 ¾ million years ago Homo habilis evolved into a more advanced human species called Homo erectus and.
With characteristic - features:
•
The species is standing upright with a height of 150 cm • Having a
thicker skull • a wide forehead and a large jaw and chin • The skull has
no brow ridge, smaller molars, smaller faces, and faces a less
prominent compared with Homo
habilis • brain size really grown to the size slightly smaller than
that of modern man Homo erectus • The male brain is larger than Homo
erectus female. 5. Homo sapiens About 400 thousand to 300 thousand years ago, Homo erectus evolved into a new human species called Homo sapiens. The word'''' Homo sapiens'''' means a wise man.
With characteristic - features:
•
The brain size of Homo sapiens early varied widely, such as Homo
erectus have an end, and there are close to the size of modern humans. •
Have the same height with modern humans • It has a wide face that
stands out around the mouth and nose, • Have a great brow and low, • a
prominent forehead. • Do not have a chin, one thing that belongs only to modern humans. 6. Neanderthals
Neanderthals are a type of early Homo sapiens who lived in Europe and
the Middle East from 130 thousand to 35 thousand years ago. Different types of early Homo sapiens lived in parts of Africa, Europe and Asia during this period.
With characteristic - features:
•
Neanderthals had big, muscular body has a face that stands out • • •
Bones of the brow low brow • Most do not have the chin • Having a large
brain, the average size of larger brains than modern humans. They are smarter than the hunt and make tools with early human prehistory.
They sometimes hunt horses, reindeer, and mammoth, but they are more skilled catch rabbits and other small animals.
Neanderthals made stone tools vary, which is used to cut the animals, cooking, peel the skins of animals, and wood carving.
Neanderthals were the first humans to bury their dead.
7. Modern humans Modern humans first appeared about 100 thousand years ago in the Middle East and Africa.
With characteristic - features:
•
Having a larger brain than humans ever • Man has the chin, high
forehead, and • The face of a smaller and less prominent than the face
of early Homo sapiens. • Do not have a large brow bone and skull • Has a higher and more rounded.
The scientists classify modern humans as Homo sapiens, the subspecies of Homo sapiens. Anthropology experts believe that modern humans first is the development of this type of early Homo sapiens.