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As of today, there is an estimated 450,000 to 700,000 African Elephants and about 35,000 to 40,000 Asian Elephant.

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Paleontologists have discovered dozens of fossil records that prove that more than 300 species of Elephants have walked the Earth over a 55 million year time period.

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An Elephants physical attributes aren't the only ting that has evolved over the years. Many people wonder how Moeritheriums' name also evolved to "Elephant". Well Elephant's order is "Proboscidea" which has the latin meaning "Trunk." So then the word "Elephant " was derived from the Greek word "elephas"

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Researchers say it takes at least 1.6 million generations for a mammal to achieve a drastic body size change. Which explains why it took Elephants over 24 million years to achieve the size they are now.

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Due to the elephants drastic size change over a series of millions of years, researchers believe the size change is the reason it took so long. It takes longer to evolve into a bigger body rather than "shrinking" into a smaller body.

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Many scientists believe that it took Elephants about 24 million years to evolve from the size of a mouse.

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Many researchers believe that around 50-60 million years ago, Moeritheriums, which were the equivalent of present day pigs, were the main roots from which the proboscideans then evolved from.

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About 80 Million years ago, the genetics from the elephants split away from primates. The tree shrew is considered our nearest common ancestor.

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The Mammoths and Asian Elephants, or Elephas, came into existence around the same time. Elephants also originated in Africa, but research shows that there is a stronger tie to evolution to mammoths rather than the African Elephants.

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The process of changes in the sequence making of cellular molecules, such as DNA or RNA.

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A large discredited biological hypothesis that was made about the development of the embryos of animals, from the beginning stages of fertilization to hatching.

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A structure in humans that corresponds to a functioning structure or organ. In humans this might be wisdom teeth, muscle of the ear, the appendix, the tail bone, etc.

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A structure of bone or an organ that may appear in different animals which might of come from a common ancestor.

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Differences in the same pattern of genotypes in a small population, which will then create the chance of certain genes or a species to die out or possibly not reproduce all.

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Preference by one sex for certain characteristics in organisms of the sex.

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Divergent, parallel and Convergent Evolution:

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Divergent, parallel and Convergent Evolution:

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Divergent Evolution: the build up of differences between two groups which can lead to a new species.
Parallel Evolution: independent evolution of similar features/traits from similar ancestors.
Convergent Evolution: independent evolution from similar traits

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Migration is the movement from one part of something onto another. Gene Flow is a mechanism for transferring genetic diversity among populations.

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The structure change of a gene, which may result in a different form that may pass onto later generations.

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Variation=Mutation
Inheritance=DNA/Sexual Selection
Selection=Selection/Gene Drift
Time=Migration/Gene Flow

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The differential survival and reproduction of individuals due to difference in phenotype.