Question

observation of evolution of brain vertebrates

Answer 1

The principles that govern the evolution of brain structure are not well understood. Brain to body size[clarification needed] does not scale isometrically (in a linear fashion) but rather allometrically.[citation needed] The brains and bodies of mammals do not scale linearly. Small bodied mammals have relatively large brains compared to their bodies and large mammals (such as whales) have small brains; similar to grow If brain weight is plotted against body weight for primates, the regression line of the sample points can indicate the brain power of a primate species. Lemurs for example fall below this line which means that for a primate of equivalent size, we would expect a larger brain size. Humans lie well above the line indicating that humans are more encephalized than lemurs. 



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Answer 2

Evolution of vertebrates:

The vertebrate brain is the fundamental piece of the focal sensory system. In vertebrates (and most different creatures) the brain is at the front, in the head. It is secured by the skull and near the fundamental faculties of vision, hearing, equalization, taste, and smell.  

The structure of every single vertebrate brain is fundamentally the equivalent. Simultaneously, over the span of evolution, the vertebrate cerebrum has experienced changes, and become progressively successful.

In case of ‘lower’ creatures, most or the majority of the mind structure is acquired, and along these lines their conduct is generally instinctual. In warm blooded creatures, and particularly in man, the brain is grown further during life by learning. This has the advantage of helping them fit better into their condition. The ability to learn is seen best in the cerebral cortex.