What do fish eat? Detailed answer

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What do fish eat? Detailed answer

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What do fish eat?

If you've ever been on a fishing trip, you must be convinced of anything but what you offer them as bait. City boys often fish with bread on a hook. Village boys use worms for this. Trout fishermen take flies for this purpose. And some fish are tempted by the sight of another fish on the hook. Since there are thousands of species of fish, it is impossible to describe everything they eat. But the struggle for existence under water is so intense that the fish are accustomed to not being too picky about food.

Some fish are vegetarians and do not eat any living creatures, but most of them are predators, that is, they eat other fish or marine animals and insects. It is curious that many fish are happy to eat small crustaceans or shell animals. Although fish are very different, they still have a few things in common. For example, most often fish have an elongated, pointed shape that allows them to move quickly in the water.

Most fish use their tail as propulsion and control their movement with both their tail and fins. They breathe with gills, through which water constantly passes from the mouth.

Author: Likum A.

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Random news from the Archive

Pepper vs Salt 07.11.2017

If a person likes spicy food, they eat less salt, researchers from the Third Military Medical University and the Institute of Biomedical Engineering and Technology in Suzhou found. The experiments of Zhiming Zhu and his colleagues involved several hundred people who were spicy food lovers to varying degrees and pepper lovers were more sensitive to salt than others.

To understand why this is happening, the authors of the work observed brain activity while the participants in the experiment tried solutions of salt and capsaicin, the famous alkaloid found in chili peppers and to which peppers owe their burning taste. It turned out that the nerve centers responsible for one and the other taste partly overlap, so that when a person eats spicy food, not only “pepper” zones are activated in him, but also those that should respond to salt - and it seems to the brain that the food is already salted.

Salt is believed to increase blood pressure, and those with heart problems are advised to eat less salt. Obviously, spicy drinkers shouldn't have a blood pressure problem - and indeed, researchers found that pepper drinkers had an average 8 mmHg lower systolic blood pressure and 5 mmHg lower diastolic blood pressure. Art. (Recall that the normal ratio of systolic and diastolic pressure is 110 and 70 mm Hg, and if the systolic rises to 120-139 mm Hg and the diastolic - to 80-89 mm Hg, then case of prehypertension.)

Probably, one could advise those who have problems with pressure to consume more spicy dishes - if, of course, a person is ready to endure the burning taste of food. True, here, on the one hand, it would be necessary to double-check the results obtained with residents of other countries, and not only with the Chinese, and on the other hand, it would be nice to do the same experiments with other burning compounds, and not just with capsaicin from chili.

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