The mammalian brain is highly developed and is much larger in mass than the spinal cord (3-15 times). The most developed departments are the forebrain and cerebellum. The development of the forebrain occurred due to the growth of the cerebral cortex. Furrows have formed in the bark, increasing its surface. Thanks to the developed cerebral cortex, mammals easily develop conditioned reflexes, which allow them to quickly adapt to changing environmental conditions.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.