Evolution is taking place, but its not Darwinian evolution. God created one breeding pair in each species and/or family group, with many latent variations in their genetics, and through natural selection, these genetic variations are being separated, giving the illusion of de novo evolution. Therefore we should see more genetic variability the further in the past we go, and less genetic variability in the future, which is exactly what we see.
"If you look back 500 million years ago, early history of invertebrates, there was an enormous range of designs which we no longer see on the Earth. Designs which we don't even know how how to relate to any existing groups, *because any pattern in the history of life it's not progressive advancement of complexity. It's rather the restriction of these enormously varied designs that existed early in the history of life to a few highly successful forms*." Gould
There is also a highly sophisticated environmentally induced adaptation mechanism that produces temporary changes to the physical appearance (phenotype) but makes no changes at all to the genetics (genotype), the cecal valves of lizards are a prime example. This is referred to as phynotypic plasticisty
"Lizards Undergo Rapid Evolution After Introduction To A New Home" Sciencedaily
Date: April 18, 2008
University Of Massachusetts, Amherst
Summary: In 1971, biologists moved five adult pairs of Italian wall lizards from their home island of Pod Kopiste, in the South Adriatic Sea, to the neighboring island of Pod Mrcaru. Now researchers have shown that introducing these small, green-backed lizards, Podarcis sicula, to a new environment caused them to undergo rapid and large-scale evolutionary changes
But as we see, the lizards DNA sequences did not change, thus no Darwinian evolution took place, because Darwinian evolution can only be established by DNA sequence changes
"Our results suggest that in P. sicula, at least some of the changes associated with a dietary shift toward a higher proportion of plant material MAY BE PLASTIC. Specimens from the Pod Mrcaru population, which in nature? eat substantial amounts of plant material exhibited a reduction in digestive tract length AND A TOTAL LOSS OF CECAL VALVES AFTER BEING FED AN EXCLUSIVELY ARTHROPOD DIET FOR 15 WK" - Bart Vervust
The theory of Darwinian evolution was established long before we knew anything about phynotypic plasticisty and "conserved" (do not evolve) DNA elements.