How do pigs show the cephalization of vessels?

Which organisms show cephalization?

Cephalization describes the process by which organisms develop a distinct head. The head of a cephalic organism contains a concentrated group of nerves or brains that control the rest of the organism, as well as specialized organs for consumption and perception, such as the mouth, eyes and ears. Cephalized organisms show a distinct separation between parts of the body; You have front, back, up and down. These animals comprise the majority of the animals that are encountered on a daily basis.


All vertebrates are considered highly cephalic organisms due to their pronounced head, well-developed brain, sophisticated nervous system, and complex thought processes. Examples of highly cephalized vertebrates include humans and other primates such as gorillas, chimpanzees, baboons, and bonobos; Domestic animals such as cats, dogs, ferrets, and rabbits; common pests such as rats, mice, squirrels, and raccoons; and large mammals such as bears, deer, lions, elephants, pigs, horses, and sheep. Other vertebrates include lizards, snakes, amphibians, birds, bats, and fish. Any organism with a backbone is a vertebrate and has a high degree of cephalization.


Cephalopods are a group of invertebrates that have a high degree of cephalization. These animals comprise a group of mollusks with centralized heads and highly developed brains. The four types of cephalopods are cuttlefish, cuttlefish, octopus, and nautilus. Not only do these animals have different heads and sophisticated brains, but they also have the ability to change color, texture, and body shape to evade predators.

Other examples of cephalization

Insects are cephalized because they have unique heads with special parts for consumption and perception and the clear division of body parts. you point however, it does not show a high degree of cephalization because insects lack the complex thoughts of vertebrates and cephalopods. Some insects show cephalization of the head but not of the nervous system. Arachnids, a group that includes spiders, mites, and scorpions among others, also show cephalization. Platyhelminthes tribe flatworms show the beginnings of cephalization but are not completely cephalized.

Noncephalized Organisms

So many organisms exhibit cephalization that describing non-cephalized animals is the easiest way to get an idea of ​​how many animals are cephalized. A handful of sea creatures have a basal nervous system, which is designed as a nerve network without a head. To this Organisms include cnidarians like corals, jellyfish, sea anemones, and simple mollusks like scallops. Echinoderms, or starfish, do not have cephalization either. Almost all animals that do not fall into one of these categories show some degree of cephalization.
Main Nature Which organisms exhibit cephalization?

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