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- The oldest frogs ever discovered have been unearthed in rocks from Madagascar and Poland, dating back roughly 250 million years.
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- Pre-historic record shows that colored rock paintings were first done by “Cro-Magnon man”.
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- The organs which are morphologically different but perform the same function are called Analogous organ.
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- The survival to the fittest was the concept presented by Herbert Spencer.
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- “Survival to the fittest” means that organisms that are better adapted to their environment are best suited to survive and successfully reproduce.
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- In the “Origin of the Species” by British naturalist Charles Darwin, the concept of the survival to the fittest of organisms became popular.
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- Darwin coined the phrase from Herbert Spencer, an English Sociologist, who first uttered it in his 1864 book “The Principle of Biology”.
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- Herbert Spencer coined the term “Survival to the fittest” seven years before Darwin’s publication of his theory of natural history.
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- The “Origin of Species” was published in 1859.
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- Charles Darwin proposed the Theory of Universal Common Ancestry, linking all forms of life by a shared genetic heritage from single-called micro-organisms to humans.