The sea depths are full of mysteries and inhabited by amazing creatures, which are discussed today.
The largest animal on the planet living in the ocean is the whale. Despite the fact that he is huge, its throat is very small, and the mouth was blocked by Horny plates with fringed edges, which is also called whalebone.
This is baleen for straining food. And eats whale: typing in the jaws of sea water, he filters it through baleen, like a huge sieve.
Water is strained and poured, and small animals – crustaceans and fish, stay inside the pharynx. And though the whale lives in the ocean, he is not a fish – he’s a big marine animal. Female whales feed their young babies with milk, and breathe, the whales, and terrestrial animals – air.
And then there are the toothed whales called sperm whales. They have whalebone is not available, but grow the huge jaws and sharp teeth. The sperm whale dives deep in the sea and get those teeth of an octopus or squid.
Stars are not only high in the sky, but in the depths of the ocean. These stars live, they are called sea stars. Sea stars feed on mollusks. They crawl on the ocean floor, moving their limbs, similar to Lusikisiki and looking for prey. And when you stumble upon a conch shell, grab her with its rays, and peeping through the casement, start to eat the soft contents. Continue reading
Sea stars (Asteroidea) – the denizens of the deep, the class of invertebrates such as echinoderms. Starfish being relatives of sea cucumbers, brittle stars, sea lilies, sea cucumbers, sea urchins, – currently there are about 1600 species, having star-shaped or pentagonal shape. The starfish, despite its inactivity and the absence of the head itself, well developed nervous and digestive systems. Why, in fact, “echinoderms”. It’s all in the hard skin of sea stars – from the outside it is covered with short needles or spikes. Conventionally, these whimsical creatures can be divided into three groups: common sea stars, feather stars, known for wriggling rays (up to 50!), and “fragile” stars, casting its beams in case of danger. However, for this animal is not difficult to grow themselves new, and from each beam soon there will be new stars. How is that possible? – Due to the characteristics of the structure of stars – each of its rays made in the same way, and contains: two digestive outgrowth of the stomach, performing the function of the liver red eye spot at the tip of the beam, protected by a ring of needles radial bundles of nerves olfactory organs (they are the same suction cups and method of transportation) located in the groove on the ventral side papules is skin gills in the form of fine short fibers, located on the back and producing the gas exchange processes of genital organs (usually two of gondina each beam) skeleton consisting of a longitudinal series of vertebrae within, and hundreds of calcareous plates with spines, covering the skin and connected with muscle that not only protects the animal from damage, but also makes it very flexible rays. The bodies of starfish are made of 80% calcium carbonate. Thus, each ray of the starfish, being separated from her body, it is a viable and rapidly regenerates. Continue reading
Fifty people were injured on one of the beaches of Argentina because of the attacks of a school of hungry palomat . It is a predatory fish, very similar to piranhas.
The victims, almost became lunch for the river monsters to escape the heat, peacefully bathed in the river in the city of Rosario, located in the center of Argentina.
The attack of predatory fish did not go unnoticed. Local rescue services reported that fish suddenly attacked the swimming people and biting their hands and feet, and one seven-year-old girl lost part of a finger.
According to experts, the reason for this aggressive behavior of palomat that often occur on the Parana river, it’s a heat wave in the region. The air temperature in Argentina in the last days was around 40 degrees Celsius. Holidaymakers warned nearby areas, appropriate signs posted.
Of predatory fish. Sharks
The vast majority of predatory fish found in tropical and subtropical areas, but a few species live in the temperate zone. Among large predatory fishes has become best known sharks, twenty families which includes more than 250 species.
The most dangerous to humans are four species of shark is the great white shark . or “man-eater”, reaching a length of 12 meters,
avstraliiskogo . Continue reading
Garden pond — one of the most common forms of artificial pond used in the landscape design suburban area. Often the pond is one of the most important elements of the garden, giving the General appearance of the site the completeness or being the center of the composition. A garden pond often ends in a stream, sometimes in the pond to include a fountain or waterfall.
To build a garden pond in a suburban area, you don’t have to dig. Modern construction technology has advanced greatly, so today there are many ways to build a garden pond at his dacha. The method of construction of the reservoir strongly depends on its purpose. Usually garden ponds can be used as a basin near the place of rest, a habitat for various aquatic animals, primarily fish, the pond can be a place of planting ornamental aquatic plants, pond fountain, or an inanimate surface water, which serves to rest the eyes, etc. Some of these types of ponds can be joined together, for example, a place for bathing and still water surface, but some can be implemented only separately. In any case, depending on the purpose of the reservoir that you want to create, everyone can choose for themselves the best method of construction, which is suitable from a financial perspective.
The most obvious way device shadowood is to dig him up. But this method is not always rational, since such ponds have significant drawbacks, the main of which are high cost due to large volume of dredging, the long development of the flora and fauna of the pond because the bottom of the pond are subsurface layers.
Another one of the pretty old and complicated methods of construction of artificial lake — the creation of a concrete bowl. These garden ponds are expensive and will serve for a very long time, but then they are difficult to dismantle or change their shape. Continue reading
Meat of marine fish has a specific scent which gives the product a special piquancy. The taste and smell of seafood due to the unique composition of extractives. In marine fish more than freshwater, so saltwater fish can be recommended for gastritis with low acidity, because it stimulates the appetite and promotes the secretion of gastric juice.
The main value of fish – easily digestible complete protein. Fish is digested in the human body within 2-3 hours. This can be explained by peculiarities in the structure of fish, namely a lower content of coarse connective tissue .
Products fish tender and juicy, that causes its widespread use in dietary and baby food.
The particular value of fish proteins is due to the ratio of amino acids. It has all the vital amino acids. A marine fish has a rather high content of amino acids: tryptophan, lysine and methionine. This brings it closer to its amino acid composition of ideal protein. Besides, it has advantages over animal meat protein, because it contains the amino acid taurine, which acts as a regulator of blood pressure, and thus prevents the development of hypertension. Taurine also stimulates the release of insulin, which regulates blood sugar levels.The most rich in taurine sea bass, cod, tuna and other oceanic fish.
Marine organisms are rich in valuable fats, which differ from fats of land animals. Fish oils have the ability to remain fluid at low temperatures than closer to the fat man, and therefore better absorbed. A very valuable property fat fish is low in cholesterol (20-30 mg %), therefore, the dietary addition of foods containing fat fish, rich in polyunsaturated fatty acids. which dissolve the cholesterol, significantly decreases the likelihood of atherosclerosis. Continue reading