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Marine rays: species, habitat and breeding patterns

In the water depths are found a variety of creatures. In addition to colorful fish, there are strange creatures. Sharks and stingrays are close relatives of the ancient inhabitants of the seas and oceans.

Millions of years of evolution have made these animals dissimilar. Today, stingrays represent a diverse group of marine inhabitants.

Skate fish are cartilaginous fish and have a flat body shape.

Read more: shark.

Skates belong to the superorder of plate-like cartilaginous fish. They have a characteristic appearance: the head is fused with the pectoral fin and a very flat body.

Color depends on the habitat. It is found in fresh and marine waters.

The size of individuals ranges from a couple of centimeters to several meters. Wingspan can reach two meters.

The color of the upper body can be sandy, multicolored and dark. These colors can be masked in the environment.

Lower body is white. It is located on:

  • maw;
  • nostrils;
  • gills (5 pairs);
  • organs.

The closest relatives of these creatures are sharks, as they are also cartilaginous fishes.

The tail of the stingray fish is long, filiform in shape. Representatives of this species are distributed throughout the globe.

The waters of Australia and Antarctica, the Arctic Ocean and other places are where the stingrays live. They are adapted to any conditions of life, so in the course of evolution so spread.

Scientists identify the following types of stingrays:

  • electrical;
  • pyloric;
  • slope;
  • tail-shaped.

All rays belong to electric fish, they are able to produce current. However, only electric chutes can create it at a voltage of 220 volts.

With it, they paralyze the prey.

The respiratory system of stingrays is unique. On the back of the individuals are sprinklers, which are protected by small valves. With their help, individuals breathe when they burrow into the sand at the bottom.

If the sprinkler is clogged, it is enough for the ramp to clean them with trickles of water.

The nervous system is also unique. Representatives of this species have well developed organs of chemical reception, photoreception, and an acoustic-lateral system.

Skates have high autonomy of the spinal cord, which brings them closer to cold-blooded animals.

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