9. 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
Bacteria’s. Which then evolve into water
creatures that dominates the seas.
11. The Sea Part II
After a few years of evolution and when the
earth already have oxygen the first land
reptile was born.
12. 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.
13. 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
15. 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.
16. 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.
17. The Top Two Predator of the
Jurassic Period
Allosaurus
Megalorsaurus
18. 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.
19. 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.
21. 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 .
22. 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).
24. 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.