How many hearts does an octopus have? Detailed answer

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How many hearts does an octopus have? Detailed answer

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How many hearts does an octopus have?

The octopus has eight tentacles. How many hearts does he have? This unusual animal has three hearts. One main thing, like everyone else, and two gills that drive blood through the gills.

The body of an octopus is soft, therefore, despite its large size, it can squeeze through narrow cracks and small holes. This is very useful for him - in this way he squeezes into his hiding places in the rocks and between the stones. Octopuses can live in boxes, cans, car tires, and even rubber boots that fall to the bottom. The octopus keeps its shelter clean, removing various debris from there: stones, scraps of algae. All this is added to a pile near the shelter.

When they have to run away, many octopuses release wisps of ink that hang in the water in the form of dark opaque spots. They can also throw off their tentacles. This happens due to a sharp contraction of the muscles. This is also a protective device - in case you managed to grab it. Surrounded by tentacles, the octopus has a beak with which it deals with prey caught by tentacles: fish, crabs, lobsters and other animals. The bite of octopuses can be poisonous, so even very small ones should not be picked up.

Author: Cellarius E.Yu.

Random interesting fact from the Great Encyclopedia:

How are arteries different from veins?

No urban transportation system can match the efficiency of the body's circulatory system. If you imagine two piping systems, a large one and a small one, that meet in a pumping station, you will get an idea of the circulatory system. A smaller system of pipes runs from the heart to the lungs and back. Large - goes from the heart to other various organs. These tubes are called arteries, veins and capillaries.

Arteries are the vessels that carry blood away from the heart. Veins return blood to the heart. Generally speaking, arteries carry pure blood to various organs, and veins return blood saturated with various waste products. Capillaries are blood vessels for moving blood from arteries to veins. The pumping station is the heart. The arteries are located deep in the tissues, with the exception of the wrist, instep, temple, and neck. In any of these places, a pulse is felt, by which the doctor can get an idea of \uXNUMXb\uXNUMXbthe condition of the arteries.

The largest arteries have valves where they leave the heart. These vessels are made up of a large number of elastic muscles that can stretch and contract. Arterial blood has a bright red color and moves through the arteries in jerks. Veins are located closer to the surface of the skin, the blood in them is darker and flows more evenly. They have valves at certain distances along their entire length.

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