Is there evidence for evolution? Short Answer

Perhaps the best evidence for evolution is found in the similarities of DNA sequences between species. You can determine which species a cell belongs to by sequencing its DNA. This also allows you to see which species have similar or different DNA and these analyses produce an evolutionary tree of relatedness (or a phylogeny). This can be especially easily seen with Introns - These are regions of the genome which do not code for any proteins and hence tend to be removed from selection (including natural selection) processes. This means that random mutations will occur at a more or less predicable rate, allowing scientists to use this, and the fossil record, to determine when the last common ancestor lived