Look at what humans have done with breeds of dogs. Before we even knew what genetics was, we understood that if you bred two small dogs, the offspring would be small. Then, if you bred those offspring with other small dogs, they would be even smaller still. That’s how we got from a wolf to a Chihuahua. That is how we manipulate the forces of evolution for our benefit.

There are countless little “tells” that species evolve. Human skeletons have a tiny tail. All embryonic mammals look virtually identical. Whales have vestigial pelvis bones. Bacteria become resistant to antibiotics after generations of repeated exposure. Sickle cell anemia is an evolutionary adaptation in human populations frequently exposed to Malaria. Moths have been observed becoming darker in color so their camouflage matches trees darkened by pollution.