To reproduce, they must be of age to mate, give birth and nurture the young. It is a gradual process thus these animals need to reproduce. This means that certain features of an animal will look different in their offspring over time. Darwin explained evolution using the phrase ‘descent with modification’ through a process called natural selection. It is important to note that evolution is a new term to describe this process. Now evolution is a fact taught in schools because when tested it was established as the truth. When evolution was being praised the number of criticism caused other scientists to look for evidence to support it. This is a peer review because they highlight flaws and give their honest opinion on the subject matter. When these pieces of evidence came to the forefront, a group of scientists with knowledge critique it. The law of parsimony states that the fewer assumption decides on an observation can be the correct way to explain that hypothesis. What makes this important was that the explanation was simple and when compared to what was already known the chances of it being true were great. These notes stood out because of the remarkable amount of overlooked observations. In later years, several scientists came across these notes and started acquiring evidence to support the hypothesis. It revealed observations that had no evidence. Darwin came up with a hypothesis which he later released in the above-mentioned book. In science, we refer to it as a hypothesis. A theory is a statement that is not supported by evidence. A broad heading called scientific theory tested the theory back then. Evolution is a theory turn fact that had its merits processed over and over again.
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