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marketing has changed more in the last 20 years than any other business discipline including accounting, manufacturing, or management in general.
A study into malaria resistance in humans spurs a re-evaluation of the neo-Darwinist understanding of evolution
Modern humans, Homo Sapiens, are now the only surviving member of the homo genus. It is almost inconceivable to us that there was a time we walked with other human species, but as the science of archaeology has progressed and more findings have been made it has become clear that the homo genus was once rife with different species.
Homologous parts of the body, which are structurally similar to those of other species, are evidence of evolution.
The myriad of skin tones and eye colors that humans express around the world are interesting and wonderful in their variety. Research continues on how humans acquired the traits they now have and when, in order to complete the puzzle that is our ancient human history.
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Professors are starting to orient Charles Darwin within a rich history of people from all cultures who have grappled with the mechanisms of life.
Explaining Charles Darwin's finches and how the study of them on the Galapagos Islands and South American mainland led to the theory of evolution.
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Paleontologists have recovered and studied the fossil remains of many thousands of organisms that lived in the past. This fossil record shows that many kinds of extinct organisms were very different in form from any now living. It also shows successions of organisms through time (see faunal succession, law of; geochronology: Determining the relationships of fossils with rock strata), manifesting their transition from one form to another. When an organism dies, it is usually destroyed by other forms of life and by weathering processes. On rare occasions some body parts—particularly hard ones such as shells, teeth, or bones—are preserved by
An oil painting (160 X 130 cm) on evolution both physical AND spiritual. Please go to my website adriankenyon.free.fr for the full explanation.
Evidence of evolution. By Martin Samaj. Evolution. the word evolution has several meanings all of which involve gradual development of things definition: Evolution is the cumulative change in the heritable characteristics of a population
In the 150 years since Charles Darwin speculated that humans originated in Africa, the number of species in the human family tree has exploded, but so has the level of dispute concerning early human evolution. Fossil apes are often at the center of the debate, with some scientists dismissing their importance to the origins of the human lineage (the "hominins"), and others conferring them starring evolutionary roles. A new review out on May 7 in the journal Science looks at the major discoveries in hominin origins since Darwin's works and argues that fossil apes can inform us about essential aspects of ape and human evolution, including the nature of our last common ancestor.
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Evolution of Man │ Dinosaur Timeline PALAEOZAIC ERA (pronounced as: pall-ay-oh-zoh-ick) PRECAMBRIAN (more than 4600 Million years ago) Which includes the Proterozoic eon and the Archean eon spanning about 2000 years each, that single celled organisms like blue-green algae and bacteria first appeared. Towards the end of the archean eon the first multicellular, soft bodied animals began to emerge such as jellyfish, sea pens, and worms. CAMBRIAN (more than 570 Million years ago) The cambrian period of the Paleozoic era was characterized by adverse eruption of life in the seas. Life had not yet evolved on land. - Trilobites (lengths up to 2 feet) - Green and Red Algae - Gastropods - Segmented worms - Corals - One-celled animals - Shellfishes ORDOVICIAN (more than 500 Million years ago) During the early Ordovican period the first vertebrate fish have been found. Graptolites and corals also flourished. The first nautiloids appeared. - Radiolarians - Starfish - Coral - Jelly fish SILURIAN (more than 436 Million years ago) The appearance of the first plants on land. Algae is an abundance in the seas, as well as marine invertebrates - Spider - Sponge - Eurypterid (giant sea scorpions) DEVONIAN (more than 436 Million years ago) The first amphibians appeared. As the Palezoic era continues, we see the first appearance of land creatures, such: - mites - ammonites - crabs - ground insects - spiders Towards the end of the Devonian period, amphibians began to colonize the land. The first ferns also grew and true seed plants eventually emerged. The Devonian period also saw many new groups of fish evolve. - Placoderm - Ichthyostega CARBONIFEROUS (more than 350 Million years ago) Great swamp forests covered the land. Insects and spiders appeared. During this period snakes emerged as well as salamander type amphibians. Large amphibians roamed the lands now and fresh water fish and shark were now in abundance. Near the end of this period the first reptiles appeared on land. - Insect - Pleuracanth PERMIAN (more than 270 Million years ago) The first sailback reptiles. The Permian Period, at the end of the Palezoic era, marked a great changes in the Earth's climate and appearance. Trilobites and other marine groups became extinct, and the group of small reptiles (diapsids) abound. These were the ancestors to most modern reptiles and the ruling dinosaurs as well as pterosaurs and crocodiles. Thriving also, were the early ancestors to mammals (synapdia), which included some large reptiles such as dimetrodon. Reptiles grew to dominance among vertebrates, because their special adaptations enable them to flourish in the drier climate. The warm zone spread in the northern hemisphere, where extensive dry desert appeared. The rock formed at that time are stained red by iron oxides, the result of intense heating by the sun of a surface devoid of vegetation cover. The old types of plants and animals dried out. - Dimetrodon - Eryops ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ MEROZAIC ERA (pronounced as: mezo-zay-ick) TRIASSIC (more than 225 Million years ago) All the continents were joined together in one huge landmass. Climate was hot and dry but with rain seasons. The first Tree Ferns and Coniferous trees were starting to appear. As the Mesozoic era begins, we see the rise of the what is known as the dinosaurs. Pterosaurs (flying reptiles) also made their first appearance here as well as : - Coelophosis - Crocodiles - Diplodocus - Euskelosaurus - Frogs - Mammals - Turtles During the late Triassic period, many small mammals also arose. JURASSIC (more than180 Million years ago) The earliest known birds appeared (e.g. Archaeopteryx) The climate change as the huge continent was breaking up. There were now forests of cycads, conifersand gingko. The Jurassic period began the Age of Ruling Reptiles. During this period, vegetation was greener and more lush. By late Jurassic, huge dinosaurs walked the lands such as: - Archaeopteryx - Allosaurus - Brachiosaurus - Ceratosaurus - Rhamphorhynchus - Stegosaurus - Brachiosaurus - Tyrannosaurus CRETACEOUS (more than 135 Million years ago) The Cretaceous period of the Mesozoic era may have seen more dinosaurs than ever before, like the: - Ankylosaurus (heavyly armoured shell) - Centrosaurus - Duckbilled Parasaurolophus - Muttaburrasaurus - Quetsalcoatlus - Triceratops (3 horned dinosaurs) - Tyrannosaurus (carnivorus and savage) Birds became increasingly numerous and flowering plants were emerging. By the end of the Cretaceous period, all large and small ruling reptiles, except the crocodile went extinct. The continents has separated and each has its own flora and fauna. However, Australia and Antarctica were still joined together. There were now flowering plants such as magnolias and waterlilies. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CENOZOIC (pronounced as: sen-oh-zoh-ick) during many different species of animals appeared. This era ended with the Great Ice Age and the appearance of the first humans TERTIARY (more than 63 Million years ago) Part of the Cenozoic era, the Tertiary period is divided into five epochs: • Paleocene • Eocene • Oligocene • Miocene • Pilocene During this time mammals diversified quickly. Some examples are marsupials, insectivores, bears, hynas, dogs, cats, seals, walruses, whales, dolphins, early mastodons, hoofed mammals, horses, rhinoceroses, hippopotamuses, oreodonts, rabbits, monkeys, lemurs, apes, and humans (Australopithecus). - Mammoth - Sabre-Toothed Tiger - Eohippus QUATERNARY (recent to more than 8 Million years ago) Quaternary period was the second and last period of the Cenozoic era. This period is divided into two (2) epochs: • Pleistocene • Holocene Mammoths roamed the lands. Cattle, deer, and of course, Homo Habilis, Homo Erectus, and Homo sapiens.
For 300,000 years, our species lived in hunter-gatherer societies; a highly social lifestyle that explains the origins of language.
We can only guess what the future will look like. But the past? We have evidence to help us paint a picture of it. To visit it.
For months, the tech community has been abuzz with rumors that the next version of Android – Android 5.0 – would be called Key Lime Pie. Where did this rumor initially come from? Nobody knows. But apparently, that rumor wasn’t pure speculation, since a Google employee all but confirmed the name during a recent doodle […]