First Ever Warm-blooded Fish Identified - proper way of hand wash dishes in a restaurant

The Opah, a. k.
Moon Fish is a very popular food.
Like other fish, this fish is usually considered cold
Flesh and Blood creatures
However, research conducted by scientists at the National Oceanic and Atmospheric Administration (NOAA) shows that this is the first time ever warmblooded fish.
It is believed that catching the opah will bring good luck, so fishermen who catch the opah will often give it away instead of selling it.
Before the warm discovery
All the fish are considered cold.
Because they can't maintain the warm core temperature in the body, they are full of vitality.
The reason for this inability is the breathing function of the fish, which extracts oxygen directly from the water through the fins of the fish.
This is advantageous because it allows them to stay under the water quite deep indefinitely.
However, the disadvantage of doing so is that the fish cannot maintain a warm temperature, because the warm blood (due to muscle activity) washed out of the heart will immediately pass through the fish gills, and immediately cool to the temperature of the surrounding water.
Therefore, any heat generated by the muscles of the fish is dissipated, and the cold affects all the functions of the fish.
Only a few larger fish, such as tuna and some sharks, were observed to be able to warm certain parts, but not the whole body, so they could not be considered warm --blooded.
However, a fish has evolved successfully to overcome this limitation: opah/moonfish.
The findings were made by a team of researchers led by Nicholas Wegener of NOAA South-
Western California Fisheries Science Center
This finding is very surprising because the fish has been used as a source of food for a long time, however, this aspect of its biology has never been noticed. L.
It is distributed all over the world, from the western Atlantic to the eastern Atlantic waters, as well as the Pacific and Indian oceans.
It lives deep in the ocean, in 50-500 meters.
The temperature of its habitat is usually within the range of 8 to 22 °c.
It's a big disk.
The shape and shape of the fish, with obvious patterns in color.
It can grow up to 2 m long and weighs 90 kg (nearly 200 ).
The body shows a gradual gradient of blue at the top and a rose pink at the abdomen/bottom.
It has obvious white spots all over the body, and like most fish, the deep scarlet fins are placed horizontally, not vertically.
Its lower jaw is also Scarlet, and its eyes are golden --yellow color.
The body is covered with a circular scale, and its rainbow-colored bird cage coating is easily worn out.
Sharp mouth, prominent lips.
Opah is a separate fish and tuna is sometimes observed at school.
When the fins are placed horizontally, they swim by moving the fins by swinging motion. e.
They have an elevator.
Based on the swimming mode.
This combines with their streamlined and forked tail fins, allowing them to swim at a fast speed of 25 cm/s to almost 4 m/s.
Their food includes small fish, shrimp, squid, etc.
Their life cycles are not fully articulated yet, but they are known to spawn in the spring.
They were born with a lack of dorsal and pelvic fins, but soon experienced a rapid transition to form a disk-like deep fin with featuresbodied form.
The fish is able to maintain core body temperature at temperatures above ambient temperatures of at least 5 °c.
This is possible because there is a special network of insulated blood vessels between the heart and the cheeks.
The insulating effect is to keep the blood that pumps out of the heart warm so that before entering the rest of the body, it reheats the oxygen blood that leaves the lungs, thus keeping the body temperature warm.
This is possible because blood vessels carrying warm blood, from the heart to Jill, are arranged around the blood vessels that go through Jill that leads to the heart.
Due to this arrangement, the oxygen-removed blood reaches the fish leaves that are cooled and filled with oxygen.
But once it leaves the fish gills, the proximity of the insulated blood vessels re-heats the oxygen-added blood, causing the whole body to receive warm oxygen-added blood.
The whole process of heat transfer between two blood vessels flowing in the opposite direction is called-
The current heat exchange.
This helps generate heat due to the muscle activity of the fins.
Heat is maintained throughout the body by the fat insulation layer along the skin.
Due to all these factors, it is the first absorbent fish to be found. Being warm-
It is very beneficial to spawn in a cold environment, which makes this fish an active predator.
Thanks to its absorption, it can move faster and actively capture prey compared to the cold
Warm-blooded companions who wait for prey to drift nearby and eat slowly.
It also enables it to dive deeper into the depths to find food, or to escape its own predators, and to have a better sense of vision and speed. Also, cold-
Blood fish cannot stay in deep water for a long time because the temperature can cause their organs to shut down.
Fortunately, warm.
The bloody Opah overcomes this limit and allows it to stay deep for a long time.
This discovery provides an interesting guess as to whether it is warm or not
Blood is a new evolutionary trend of fish living in cold conditions, or a residual feature of modern common ancestors
Mammals and birds.