Presentation is loading. Please wait.

Presentation is loading. Please wait.

The History of Human Evolution

Similar presentations


Presentation on theme: "The History of Human Evolution"— Presentation transcript:

1 The History of Human Evolution
By: Nala Garcia Jasmine Ross

2 What is Evolution? Evolution is the change, a type of change over time in an organism. Evolution is the type of change that helps organisms adapt to there new environments more. Evolution is also thought to be a process in which different types of organisms changed and diversified to present day organism. Human evolution is the most important break through in science. Human evolution, or anthropogenesis, is the origin and evolution of Homo sapiens as a distinct species from other hominids.

3

4 Timeline of Human Evolution Mammals
256 MA~ The earliest mammal-like reptiles are the Pelycoseiurs  The Pelycosaurs were the first animals to have Temporal Fenestra. 220 MA~ The jaws of Cynadonts resemble modern mammal jaws. It is very likely this group of animals contains a speciea which is the  direct ancestor of all modern mammals. 220 MA~ From Eucynodontia came the first mammals. Most of the Early mammals where small ad they fed on insects  125 MA~ Monotremes are an egg laying group of mammals represented amongst modern animals by the piatypus and spiny  anteaters that split away. 100 MA~ Common genetic ancestor of mice and humans

5 Primates 65-85 MA~ A group of small, nocturnal and arboreal 
insect-eating mammals called the Euarchonta. This species lead to the Primate, tree. 40 MA~ Primates diverge into suborders, Strepsirrhini, (wet nosed primates) and Haplorrhihi (dry nosed primates) 30 MA~ Platyrrhineg, new world monkeys have Prehensile  tails and males are colorblind. 25 MA~ Proconsul was an early genus of Catarrhine  Primates.

6 15 MA~ Homminidae (great apes) speciate from the ancestors of the Gibbon (lesser apes).
13 MA~ Pierolapithecus had special adaptations for tree climbing. Just as humans and other great apes do. A wide flat ribcage, a stiff lower spine, flexible wrists and shoulder blades that lie along it’s back. 10 MA~ Hominia speiate from the ancestors of the gorillas. 7 MA~ Both Chimpanzees and humans have a layrnx that reposition during the first two years of life to a spot between the  Pharynx and the lungs. 4.4 MA~ A Ranidus which lived about 4.4 million years ago during the early Pliocene and a Kadabba dated to approximately  5.6 millions years ago.

7 3.6 MA~ An anallysis of Australopithecus africanus lower
vertebrae suggests that females had changes to support bipedalism even while pregnant. 3.5 MA~ Kenyanthropus platyops a possible ancestor of homo, emerges from the Australopithecus genus. 3. MA~ Loss of body hair take place in the period 3-2 ma in parallel with the development of full bipedaism. 2.5 MA~ Appearance of Homo. Homo habilis is thought to be the ancestor of the lankier and more sophisticated Homo ergaster. 1.8 MA~Homo erectus evolves in Africa. Homo erectus would bear a striking resemblance to modern humans, but had a brain about 74 percent of the size of modern man.

8 1.2 MA~ Homo antecessor is the common genetic
ancestor of humans and Neanderthal. At present estimate, humans have approximately 20,000–25,000 genes and share 99% of their DNA with the now extinct Neanderthal. 600 KA~ Three 1.5 m (5 ft) tall Homo heidelbergensis left footprints in powdery volcanic ash solidified in Italy. 200 KA~ Omo1, Omo2 (Ethiopia, Omo river) are the earliest fossil evidence for archaic Homo sapiens

9 The Facts: 1) Human-like fossils have been found in rocks, caves, dry lakes, glaciers, and other sites 2) Most fossils have been found as scattered bits and pieces 3) The stickleback fish is part of the Gasterosteidae family and can be found in freshwater environments in Europe, Asia, and North America. We came from these believe it or not!


Download ppt "The History of Human Evolution"

Similar presentations


Ads by Google