The adaptation and natural selection prove evolution. Common features found in animals demonstrate common ancestry. Common features can just as logically demonstrate a common Designer. Since bones are all we have in the fossil record, representations of tissue and hair appearance can be drawn to look like anything the artist wants you to believe. The fossil record lacks evidence to explain all the orders and species that we find in life.
Evolution explains the origin of life and is a scientific fact.
Evolution is used to support an unprovable belief that life began on its own. It interprets the evidence we have in the only way possible to support that belief. It ignores opposing evidence. There have been instances of evidence being exaggerated, falsely interpreted and even fabricated. Evolution fails to investigate the alternate hypothesis that life didn't form on its own because Divine Creation is defined to be outside the bounds of science, even if it is the truth.