God’s cessation from creation during the human era helps explain a perplexing enigma. The fossil record reveals a turnaround in speciation with the appearance of humans. Before humans, new species came on the scene at the rate of about one per year, on average. After humans appeared, the rate dropped to none per year. In natural habitats undisturbed by human activity, biologists have yet to observe the production of even one distinctly new (physiologically incapable of interbreeding) animal species.[25]