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Evolution of the woolly mammoth - BBC science

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Want more natural history and wildlife videos? Visit the official BBC Earth channel: http://bit.ly/BBCEarthWW BBC Earth The BBC Earth YouTube channel is home to over 50 years-worth of the best animal videos from the BBC archive. With three new videos released every week there's something for all nature loves from astounding animal behaviour to beautiful imagery.

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Selection for Tuskless Elephants | HHMI BioInteractive Video

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I chose to do my research on elephants evolution. Why? Because I am very interested in elephants and I support them. Elephants are amazing creatures and they show affection. I learned a lot about the class of Proboscidea. I hope to see more people becoming involved with the elephants and help them bring more into the world.

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Elephants are classified as  Proboscidea. They are under the category Proboscidea  because of their main feature and that would be their trunk. Henry F. Osborn studied some 352 Proboscidea species, which half were elephants. Now about the evolution of elephants. Elephants have been around for 55 million years and they have been to every continent on Earth. But, why were their two kinds that survived and the rest became extinct? The answer to that is, they most likely didn't evolve from their dramatic climate and environmental change.  By their quality and features, their body can survive in extreme environment change. This might not be the only reason why but it is a good generalization of what happened to elephants over time. The root of the family Elephantidae is from the mammoth, Asian and African elephant. The Asian elephant is more closely related to the mammoth than the African elephant. 50-60 million years ago, proboscidea  evolved from an mammal, the size of a pig today. The earliest know Proboscidea was a  Moeritheres. It was a size of a pig and it lived in Africa between 50-60 millions years ago. The mammoth, African and Asia elephants were all from africa but the aftrica elephant was the only one who stayed and evolved. The mammoth became extinct, by fossils of 5,000 years ago by man hunt and global warm.
Author:  Jeheskel Shoshani

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the changing process in sequence composition of cellular molecules, for example; RNA, DNA, and proteins.

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an biological hypothesis, development of the embryo of an animal, that goes through stages.

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include the muscle of the ear, wisdom teeth, tail bone, intestine and appendix.

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is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor.

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lucky or unlucky, in a small population that are dramatically  reduced.

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one sex choosing another sex through preference.

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Divergent, Parallel and Convergent Evolution:  

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Divergent, Parallel and Convergent Evolution:  

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species evolving different ways to their environment and predation pressures.

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the changing of a gene structure, different characteristics happen from generation.

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the process where animals adapted to their environment and they are able to survive, then they give off their offspring.
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Variation: mutation

Inheritance: DNA and sexual selection

Selection: selection and genetic drift

Time: mirgration/gene flow