Throughout history, lobster has been a delicacy and a source of nutrition for humans. These marine crustaceans have a firm, chewy texture that makes them very tasty. They are also a good source of omega-3 fatty acids. These fatty acids are beneficial for cognitive health. They help to reduce the risk of heart disease. They also contain zinc, copper and selenium.

Lobsters are found in all oceans. Their shells are hard, segmented and mottled brown. They can grow up to four feet long. Lobsters have five pairs of legs and a flipperlike muscular tail for swimming. They can live for up to 100 years. They have a primitive nervous system like that of an insect. Their blood circulates through large blood vessels behind their stomach. They also have gills for picking up oxygen from the water. Lobsters are classified in the family Scyllaridae.

Lobsters live in shallow and deep waters. They are typically caught in lobster pots. Lobsters caught in shallow water can be up to ten inches long. Lobsters caught in deeper water can be up to two and a half pounds. They are usually sold alive. In Colonial times, lobsters were served to paupers. They were also used as bait for more desirable seafood species.

Lobsters are very rich in proteins, vitamins and minerals. They are also very rich in omega-3 fatty acids, which reduce the risk of heart disease. They are also rich in phosphorus, magnesium, and calcium.

Lobsters are also rich in selenium. The meat is also sweeter than crab. Lobsters also contain copper and zinc. They contain vitamin A, B12 and vitamin E. They are rich in phosphorus, potassium, calcium and amino acids. They are also a good source of magnesium and omega-3 fatty acids.

Lobsters can live for up to 100 years. The males’ swimmerets are larger than those of the females. During summer, the male lobster transfers his sperm to the females. The sperm then remains attached to the swimmerets until the female lobster fertilizes them. The female lobster then releases the eggs to drift.

Lobsters are very commercially important to humans. Their meat is rich in protein, and they have less saturated fat than crab. They are also a good source of potassium, phosphorus and omega-3 fatty acids. They can be eaten boiled, steamed, or fried. They are also used in soups and bisques. They are also commonly served in lobster rolls. They are often served with butter or clarified butter.

Lobsters are very expensive. They can cost as much as three times the average amount of food. They are also more expensive than other shellfish, such as crab. They can be bought live at aquarium supply stores. They can also be air shipped anywhere in the world. The meat of lobsters is also rich in copper, phosphorus and zinc. They also contain selenium, and vitamins A, B12 and E.

Lobsters are the original pea brains. Their bodies contain 100,000 neurons. They have compound eyes on movable stalks. The most complex eyes have a concave retina. The claws are also distinctive. They have rounded surfaces and are more tender than the tail and arms.