Although it seems incredible, a Animal that appeared on Earth 450 million years ago and four survived mass extinctions continues to live among us. It is a large eel-like parasite with a suction cup-shaped mouth, no bones, and feeds on blood. Even before dinosaurs walked our planet, Earth’s waterways were inhabited.
Even though it is older than trees, it has survived to the present day and has been the subject of many scientific studies. This Pacific subcontractor (Entosphenus tridentatus), is usually about half a meter longAlthough there are longer examples.
This creature, which has long differed from its ancestors, exhibits unique adaptations. It has no bones but consists of a type of bone cartilaginous skeleton and above your head has a ‘third eye’ It is actually an organ specialized for detecting light.
Pacific lamprey, which lives on the planet mainly on the northern shores of this ocean can be considered a living fossilbecause its origin dates back to the Ordovician, approximately 450 million years ago.
They go from fresh water to the open ocean
They get their names from there The incredible journey they took throughout their lives, It begins in freshwater rivers and streams and then migrates to the Pacific Ocean.
However, their long migration was not over at that time. When they reach maturity and are ready to spawn, they have to return to freshwater environments.. Transforming from a marine animal to a freshwater animal is no easy task; Therefore, Pacific lampreys undergo a series of changes in appearance and physiology that enable them to withstand the salinity changes they experience during their migration.
The ability to move from freshwater to ocean water allows Pacific lampreys to They have a superpower: They use chemical signals released by the larvae of this species to find their way back to the river.Q. They can return to the waterway where they spawned, but unlike salmon, this is not always guaranteed to happen.
They feed on blood
These animals have an interesting diet. They have a suction cup-shaped mouth surrounded by teeth, which they use to hold on to their prey and draw blood and fluid from them. corporal. As far as scientists know, lampreys do not eat meat. Their favorite prey include Pacific salmon, flatfish, rockfish, and Pacific hake, but they also include birds and marine mammals.
And the Pacific lamprey does indeed feed on blood and body fluids, leaving an unsightly circular wound on its prey’s body. But the Pacific subcontractor It does not kill its victims because they are parasites and therefore need their hosts to survive. constantly feeding on them.
The Pacific lamprey is only one of approximately 40 species of lamprey that, as a group, descended from a jawless fish ancestor during the Ordovician period. survived at least four mass extinction eventsexplains the Live Science portal.
Fatty meat contains a lot of calories. Specifically, it contains 4.1 times more omega-3 fat than salmon.
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Contact address of the environmental department:krisclimatica@prensaiberica.es
Source: Informacion
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