Different parts of the brain control different functions. Cancer treatments, including chemotherapy, can produce certain effects on these areas of the brain, including impaired cognitive skills, chemo-induced seizures, and memory loss. The cerebral cortex is a sheet of tissue that makes up the outer layer of the brain.
There are three species of wolves: the Red Wolf, the Gray Wolf, and the Ethiopian Wolf. There are a lot more subspecies of wolves, such as: Mexican Wolf.
While there are plenty of similarities about these types of wolves there are also enough differences to separate them. The more research that is done the more those distinct differences are seen. The Gray Wolf is the one most people are familiar with.