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Charles Darwin's Adaptation Of Giraffes

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Charles Darwin's Adaptation Of Giraffes
Evolution, an interesting topic all students ponder about during biology class but don’t know the true meaning nor the examples to support it. Evolution is the theory discussing the changes in heritable characteristics of a population over generations. Populations such as cows, birds, and giraffes. The giraffe population is quite thought-provoking when it comes to evolution. Which acquires many traits and behaviors today that evolved throughout generations, such as, short sleeping times, long necks, large tongues and long tails. The principles of natural selection acted on the giraffe’s future population, particularly on mutations such as horns and variations such as thickness of fur to create adaptations, thus establishing evolution. Evolution …show more content…
The fundamental method on creating adaptations is through the principles of natural selection, a theory proposed by Charles Darwin. Let us analyze how the natural selection affected thick fur (variation) on creating an adaptation for giraffes in Siberia. Primarily, giraffes overproduce in their environment, and all the young have variations of thickness of fur between them. Most of the young die due to dangerously low temperatures since their variation of fur is too thin to survive in the environment. However, the young that does survive has the perfect variation of thickness of fur to keep warm at dangerously low temperatures in the climate. That variation of fur is environmentally selected for subsequent generations. In other words, it is passed onto offspring starting a new generation of thick-fur giraffes. The theory of natural selection affects a mutation similarly in order to create an adaption within is population. Let us continue and analyze how natural selection affected horns to create an adaptation in the giraffe population in Siberia. Unlike variation, mutation is a random change in the DNA during the life of an organism. When a giraffe mutates to have horns during its life, it suddenly increases its survivorship. Furthermore, as giraffes without horns are being hunted and killed by predators since they are vulnerable. Those giraffes who mutated to have horns can successfully defend themselves from predators and survive, and therefore leading to the increase in survivorship. Giraffes with mutated horns are environmentally selected for subsequent generations. In other words, giraffes with the mutated horns gene succeed in the environment (the more ‘fit’) and pass the gene onto offspring which starts a new generation of horned

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