When people speak of evolution they are usually referring to macro evolution. Macro evolution is when a person believes that over a long period of time animals had mutations that caused animals to grow new things. First mutations are harmful to the organism or its lethal or sometimes it takes away but it never gives new genes. Evolutionists like Darwin believed that the squirrels in the grand canyon were from evolution but really they were in the process of micro evolution this is where the animal adapts to it new surroundings because of the information already stored in its genes when God created it. We saw this in the grand canyon squirrels when half moved to one side of the canyon where it was more grassy and they became a lighter color to blend in with their surroundings. On the other side the squirrels there were in a more desolate and Barron place, there fir turned to a more darker color. This may seem like evolution but it isn't in is simply adaptation and variation. For instance when Noah's flood happened the dogs got on board (probably like today's wolves) and after they got off they had more and more offspring which moved to different places and climates, which they adopted to creating the different variations of dogs we see today.