are an overshoot of lamellar cartilaginous fishes, which includes 5 orders and 15 families. For the rays, the pectoral fins that are fused with the head and a rather flat body are characteristic. Most skates live in the seas. Several freshwater species are also known in science. From where exactly the skates live, the color of the upper part of their body depends. The latter can be either black or very light.
The size of the skates varies from a few centimeters to several meters, the wingspan of some skates can be more than two meters (for example, ramps from the family of eagles). Electric rays have a very specific “weapon”. These ramps paralyze their prey by electric discharges.
Skates can be found in different parts of the globe.
They are found even off the coasts of Antarctica and in the Arctic Ocean. It is best to observe the “flying” ramp off the coast of Australia.
Rays are relatives of sharks.
And, next of kin. Of course, there are no external similarities. Inside the composition, the rays along with the sharks are not made up of bones, but of cartilage. In the distant past, the rays were similar to sharks not only as an internal structure, but also as external features. However, time has changed them beyond recognition.
Skates are ancient fish.
This is really so – one of the most ancient fish, like the sharks.
Skates have a unique respiratory system.
Why is unique, because all other fish breathe with gills. However, if the stingray tried to do the same, then it together with the air would draw in itself the sand lying on the bottom. That is why the breath of the rays is different from the breathing of other fish. Air enters the body of the stingray through a special spray. The latter are on the back of this fish. Bryzgaltsa also protected by a special valve, but if it happens that there is still some foreign particle in the sprinkler, then the ramp is released from it by releasing a stream of water from the splashes.
Skates are a kind of waterfowl butterfly.
This analogy can be drawn based on how the rajids move in the water. They are unique in that they do not use the tail when swimming, as other fish do. Skates move due to the movements of the fins, while resembling butterflies.
The skates are different from each other.
First, in size. Nature knows slopes measuring just a few centimeters and stingrays, whose size reaches 7 meters. Secondly, different skates differently behave themselves differently. Some skates are not against, for example, jumping over the surface of the water, while most of these fish prefer to spend time digging into the sand.
The sea devil is an amazing stingray.
He encourages sailors to write the most incredible legends. Still would! If you even imagine a picture of something unexpectedly taking off from the sea water for a few seconds something seven-meter (and this is something that is the sea devil’s ramp or, as it is also called, manta), whose weight exceeds two tons, then sailors can be fully understood. Especially considering the fact that in a few moments this giant is once again plunged into the sea depths, showing the sailors a farewell black pointed tail.
The sea devil is a safe creation.
Despite the largest dimensions of all the slopes, this ramp is not endowed with any electric power, it does not have thorns and eerie teeth. And the elongated tail, which is remembered by sailors, is also not armed at all. The sea devil has a fairly good nature, and people do not touch at all. Sea devils are found in all the tropical oceans. They can be seen on the surface of the water, and in its thickness, and at an altitude of about one and a half meters above the water. By the way, the purpose of “jumping” the sea devil out of the water is not known.
The sea devil tastes good.
It is said that its meat is not only tasty, but nutritious. In ancient literature, you can find descriptions of recipes with the sea devil.Only hunting for this ramp is far from safe and easy. Due to its size, the sea devil can easily, for example, turn the boat. And why kill this extraordinary creation of nature, especially if we take into account the fact that the female brings only one cub. True, the size of the latter is very, very impressive, as, indeed, the weight, which on average at birth is ten kilograms.
The electric stingray is a terrible fish.
Much more terrible in nature, than, for example, the sea devil. The fact that the cells of the electric ramp (it is also called ordinary or marble) can produce electricity up to 220V (of course, the name of this slope went from here). And how many divers were exposed to the electric current of these skates! It is worth noting the fact that all the skates are able to produce electricity, but not as much as the electric ramp. The electric ramp has been known for a long time. Its dimensions can be defined as follows: about a meter and a half in length and a meter in width. Weights from twenty-five to thirty kilograms. The upper part of the body is covered with whitish and brown veins, so the shades can be different.
The female electric ray will give birth to live young.
Eight to fourteen cubs can be born at a time. Previously, it was believed that if the young ones are at least threatened, the female takes them to her mouth. There, the young ones are kept until the danger is reduced to nothing. But at present, these data have not been confirmed.
Electric rays are lazy creatures.
They are by nature very slow. However, the marble rays have a special power, which is that the stingray can make any fish immovable, only by touching it. Due to this unique ability, the slope does not have to move quickly – it is simply waiting for the prey by digging into the sand. Fish floating next to immobile electric rays quickly become sleepy and sluggish. In the immediate vicinity of the marble slope, the fish may even die. Fishermen are aware of this unique ability to ramp, the power of which through the network reaches the hands and forces the release of the network. The poison of a living stingray is able to penetrate the human body even if it touches it with a stick. The dead ramp is completely safe.
The marble sting strikes electric blows consciously.
Blows are more powerful directly under the water. If the ramp is annoying, it is easy to force him to repeat electric shocks several times. With the help of an electric apparatus, marble rays are protected from enemies and produce food.
The barbed-tailed stingray’s weapon is his tail.
His-just this ramp and sticks into his prey. After that, the ram extends the tail back. The victim’s wound is broken because the tail of the ramp is studded with spines. The spiny-tailed stingray never attacks just like that, it only enters the battle with the goal of self-defense. And in the ration of food kostyuhvostogo stingray enter the crustaceans and molluscs, whose skates are grind not with teeth, but with special platinum and protrusions.