Evolution is a scientific theory that has been developed over years which is defined as “any genetic change in population that is inherited over several generations” (Bailey, 2015). For an event to be classified as evolution, changes on the genetic level of a population and be passed on has to occur. Evolution includes that all life can be traced back to one ancestor, being that all life is connected. (Bailey, 2015). The scientific theory of evolution was proposed by Charles Darwin in his book On the Origin of Species in 1859 (Bailey, 2015).
“Charles Darwin is the most famous evolution scientist”, (Scoville, 2015) being widely known for his theory of evolution called Natural Selection. It was in Charles Darwin’s book, On the Origin of Species …show more content…
Lamarck studied many animals and he was struck by the similarities between them, leading him to believe life was not constant (UCMP, N.d). It was his theory that new species were formed from small gradual changes inherited from the parents to the offspring. Lamarck goes on to further explain this in his second theory stating that this process occurs by the inheritance of acquired characteristics. Likewise, during an individual’s lifetime, if any changes were to occur they would be passed directly to its offspring. Lamarck further explained inheritance of acquired characteristics by using a giraffe as an example as he had noticed they had disproportionately long necks. He believed that at first giraffes originally had a normal sized neck but by constantly stretching up to reach leaves up higher their neck would come to be longer and stronger. These giraffe’s offspring would then inherit their longer and stronger neck and in its life would increase the length and strength of their necks in a small amount and would continue to pass this onto their descendants (Hartsock, 2015). This also gave an example to his theory of use and disuse as he believed if a species began to use an organ more frequently than they had in the past, it would increase in their lifetime and the organs they stopped using would shrink (UMPC, N.d). As for example, because of the giraffe frequently stretching its neck, it has grown longer, furthermore because penguins do not use their wings to fly, they are smaller than any of the other birds. Lamarck has also been led to believe that species started out simple and are consistently moving toward complexity or perfection as he would term it because when he was studying ancient sea shells, he noticed the older they were, the simpler they appeared and thus concluded to his
“Charles Darwin is the most famous evolution scientist”, (Scoville, 2015) being widely known for his theory of evolution called Natural Selection. It was in Charles Darwin’s book, On the Origin of Species …show more content…
Lamarck studied many animals and he was struck by the similarities between them, leading him to believe life was not constant (UCMP, N.d). It was his theory that new species were formed from small gradual changes inherited from the parents to the offspring. Lamarck goes on to further explain this in his second theory stating that this process occurs by the inheritance of acquired characteristics. Likewise, during an individual’s lifetime, if any changes were to occur they would be passed directly to its offspring. Lamarck further explained inheritance of acquired characteristics by using a giraffe as an example as he had noticed they had disproportionately long necks. He believed that at first giraffes originally had a normal sized neck but by constantly stretching up to reach leaves up higher their neck would come to be longer and stronger. These giraffe’s offspring would then inherit their longer and stronger neck and in its life would increase the length and strength of their necks in a small amount and would continue to pass this onto their descendants (Hartsock, 2015). This also gave an example to his theory of use and disuse as he believed if a species began to use an organ more frequently than they had in the past, it would increase in their lifetime and the organs they stopped using would shrink (UMPC, N.d). As for example, because of the giraffe frequently stretching its neck, it has grown longer, furthermore because penguins do not use their wings to fly, they are smaller than any of the other birds. Lamarck has also been led to believe that species started out simple and are consistently moving toward complexity or perfection as he would term it because when he was studying ancient sea shells, he noticed the older they were, the simpler they appeared and thus concluded to his