If we look at the brains of fish, amphibians, birds, rabbits and dogs, we can be surprised that the forebrain and cerebellum increase in size, as well as have more folds and convolutions. But the midbrain is shrinking. This is due to the fact that mammals have more complex behavior and body structure than other mammals.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.