Understanding Human Evolution
Human evolution is a complex process that involves changes in DNA over millions of years. These changes, or mutations, can lead to new species if they are beneficial and passed down through generations. For example, humans and chimps share 98.8% of the same DNA, suggesting a common ancestor. A key piece of evidence for this is the fusion of two chromosomes in humans that are separate in other primates. By studying these genetic alterations, scientists can gain a better understanding of human evolution and the development of all life on Earth.