Sometimes a creationist will say “there are no transitional species” or “animals do change, but one species never changes into another.” While I appreciate the sentiment, these claims are not true. In reality, new species do arise over time – a phenomenon we call speciation. Secularists sometimes claim that speciation is proof of Darwinian evolution, but this too is an error. All of these mistakes can be eliminated when we distinguish between species and kinds.
Genetics is the science of heredity: the study of how traits are passed on from organisms to their descendants. It is perhaps the most relevant field of science to the issue of creation and evolution. Which position on origins is most consistent with our modern understanding of genetics? Do all organisms on earth share a common ancestor as Charles Darwin believed? Or do all organisms trace back to a large number of separately created kinds which are not biologically related to other kinds? Can the science of genetics shed light on these questions?