1. ORIGIN OF MEN

2. Evolution of men Part I: The Sea After the creation of our earth the sea was the first one to spawn life on earth which are the Bacterias. Which then evolve into water creatures that dominates the seas. 3. Creatures of The Sea 4. The Sea Part II After a few years of evolution and when the earth already have oxygen the first land reptile was born. 5. Evolution of Men Part III: The Triassic Period During the Triassic period, all of the earth's continents were joined together into a vast landmass called Pangaea (which was itself surrounded by an enormous ocean called Panthalassa). There were as yet no polar ice caps, and the climate was hot and dry, punctuated by violent monsoons. 6. Terrestrial Life The start of the Triassic period followed the Permian Extinction, an event of unknown cause that wiped out over two-thirds of land-dwelling vertebrates and 95 percent of ocean-dwelling species. Taking their place were the therapsids (mammal-like reptiles), archosaurs (from which the first dinosaurs like Herrerasaurus and Eoraptor evolved, as well as the first prehistoric crocodiles and pterosaurs), and primitive reptiles called pelycosaus (the most famous of which was Dimetrodon). It was during the late Triassic period that the mammal-like reptiles evolved into the first mammals 7. Here are the Herrerasuarus,Archosaurs,Eoraptor. 8. Evolution of Men Part IV: The Jurassic Period. The Jurassic period witnessed the breakup of the Pangaean supercontinent into two big pieces, Gondwana in the south and Laurasia in the north, as well as the formation of intra-continental lakes and rivers that opened new evolutionary niches for aquatic and terrestrial animals. The climate was hot and humid, with steady rainfall, ideal conditions for the explosive spread of lush, green plants. 9. Terrestrial Life During the Jurassic period, relatives of the small, quadrupedal, plant-eating prosauropods of the Triassic period gradually evolved into gigantic sauropods like Brachiosaurus and Diplodocus. This period also saw the rise of medium- to large-sized theropod dinosaurs like Allosaurus and Megalosaurus, which helps explain the evolution of the earliest ankylosaurs (armored herbivorous dinosaurs). The Jurassic period was also the heyday of the stegosaurs, typified by Stegosaurus. 10. The Top Two Predator of the Jurassic Period Allosaurus Megalorsaurus 11. Evolution of Man Part V: The Cretaceous Period During the early Cretaceous period, the inexorable breakup of the Pangaean supercontinent continued, with the first outlines of modern North and South America, Europe, Asia and Africa taking shape. Conditions were as hot and muggy as in the Jurassic, with the added twist of rising sea levels and the spread of endless swamps--yet another ecological niche in which dinosaurs (and other prehistoric life) could prosper. 12. It was during the Cretaceous period that dinosaurs really came into their own. Thousands of genera roamed the slowly separating continents, including raptors and tyrannosaurs. There were also other varieties of theropods, including the fleet-footed ornithomimids ("bird mimics"), the strange, feathered therizinosaurs, and an uncountable profusion of small, feathered dinosaurs, including the uncommonly intelligent Troodon. 13. These Are the Two Top predators in the cretaceaous 14. In this period the human tree began from simple apes to the humans a we are right now. This Theory was created by charles darwin . 15. The Charles Darwin Theory. Darwin's Theory of Evolution is the widely held notion that all life is related and has descended from a common ancestor: the birds and the bananas, the fishes and the flowers -- all related. Darwin's general theory presumes the development of life from non-life and stresses a purely naturalistic (undirected) "descent with modification". That is, complex creatures evolve from more simplistic ancestors naturally over time. In a nutshell, as random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival -- a process known as "natural selection." These beneficial mutations are passed on to the next generation. Over time, beneficial mutations accumulate and the result is an entirely different organism (not just a variation of the original, but an entirely different creature). 16. THE CONCEPT OF DARWINS THEORY 17. The Oldest human Bones know as Lucy Lucy is the common name of AL 288-1, several hundred pieces of bone representing about 40% of the skeleton of an individual Australopithecus afarensis. The specimen was discovered in 1974 at Hadar in the Awash Valley of Ethiopia's Afar Depression. Lucy is estimated to have lived 3.2 million years ago.] The discovery of this hominin was significant as the skeleton shows evidence of small skull capacity akin to that of apes and of bipedal upright walk akin to that of humans providing further evidence supporting the view that bipedalism preceded increase in brain size in human evolution, though other findings have been interpreted as suggesting that Australopithecus afarensis was not directly ancestral to humans.[6] In 1992, a new hominin, Ardi, was found, pushing back the earliest known hominin date to 4.4 million years ago, although details of this discovery were not published until October 2009.