The brain is the part of the central nervous system which is located in the skull of all vertebrates where it functions as a control center of the body.The vertebrate's brain is nowadays seen as an temporary endpoint referring to the evolution of the nervous system as it coordinates complex behaviours and processes sensory impressions highly centralised. It is therefore the main place for processing all kinds of information that are important for surviving.Next to vertebrates squids do also have a highly complex brain that enables them to have certain skills. That is why the central departement of the nervous system of spineless animals, like those of annelids and insects, is also called a brain. According to brain type one can also speak of cerebral ganglia or supraesophagial ganglia.The human brain is the best examined brain in the animal world.
