Evolution (Science)

Topics: Evolution, Charles Darwin, Bear Pages: 3 (837 words) Published: May 7, 2013

The aim of this report is to analyse the theories of evolutions from the famous theorists, Charles Darwin and Jean-Baptiste Lamarck, so the evolution of chosen species brown bears to polar bears will be discussed about in this report. In the times when it was the last ice age, researchers had new evidence that brown bears could’ve have wandered off to the glaciers and might’ve mated with the polar bears. At that time due to the severe climate changes and global warming, polar bears had spent time adapting to it on land. It is also because of the climate changes that the melting of glaciers took place, which could’ve led the polar bears to the behaviour of wandering off to the island of brown bears. Evidence from the genomes of polar bears are suggesting that climate changes and the interbred with the brown bears helped produce the polar bears we know as today. Charles Darwin and Jean-Baptiste Lamarck were both researching on the theory of evolution. However, both of them had different ideas of how evolution works out to be, both also having evidence for their theory. Jean-Baptiste Lamarck was a French naturalist and was known as the first proponent of the idea of evolution. Lamarck believed that living things adapt to their environment on to their needs in order to develop evolution. Charles Darwin was an English naturalist that had more accurate evidence to support the theory of evolution. He has proven that all living organisms had come from the original ancestor and that this form of evolution had happened from a process that he called Natural Selection.

Charles Darwin’s theory and Lamarck’s theory had different opinion on the form of evolution because he disagrees to the idea that animals adapting to their environment was how they evolved, that, which was Lamarck’s theory. Instead, he believes that the only organisms that will survive are the ones that have genetic variations and those who survive will continue to have more off springs which will then...
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