A variance is an exception to one or more of the zoning restrictions on a piece of property. A variance is different from a nonconforming use, which permits existing structures and uses to continue when zoning is first instituted.
The book, On The Origin Of Species,  suggested  that organisms evolve through the process of natural selection.opulations evolve as the individual organisms less able to survive in the current environment die and fail to reproduce. That is natural selection.
Charles Darwin-Father of Evolution. When Charles Darwin was born in 1809 science was still in its baby shoes. Chemists were talking about atoms, physicists about energy and electricity. Nobody really knew what it was. By the time he died in 1882 scientists were able to explain light and electromagnetic waves. And, thanks to Darwin, biologists were able to explain how life on Earth developed. Darwin was the best biologist of all times. He was an expert on plants, animals and insects. But he didn't want to be a biologist at first. At school and the university Darwin was just an average student.