In the Guangdong region of the mainland, there is an "alternative" fish, they not only live from the water, but also go to trees, this life habit is really too strange.
Its name is the climbing perch, the scientific name of the climbing perch, is a small freshwater fish in the family Climbing perch, climbing perch, and prefers to inhabit the slow flow of rivers and ditches and ponds.
They are generally about 15 to 25 cm long and are endemic to Asia.
It is well known that fish breathe on their gills in the water, and when they come ashore, the gills stick together and suffocate. However, the crucian carp has a different respiratory organ than that of ordinary fish - the gill supra.
The gill-onsite looks like a flower and is usually an organ that primitive fish possess and helps fish absorb oxygen directly from the air.
Due to the presence of gill squids, the carp can breathe freely on land and survive even without water. Scientific experiments have proved that as long as they are not exposed to sunlight, they can stay in places without water for up to 6 days.
As the saying goes, "good fortune and misfortune depend on each other", and the crucian carp evolved to have the ability to survive on land, and thus paid a corresponding price. They do not have swim maws in their bodies, and when they are in the water, they need to swim constantly to ensure that they do not sink to the bottom.
As a fish, it is somewhat awkward to say that you will drown in the water, but this is indeed the truth.
It is worth mentioning that the walking style of the crucian carp is very unique, don't look at its small size, but it has a very developed pectoral and abdominal fins, which can make its body stand, not to fall, and its gill cover can also play the role of the soles of the feet.
When you want to walk, the head is flicked, the tail is swinging, the power is there, the engine starts, and then the gills on both sides grab the ground, and they walk up, shaking left and right like a three-jumper, which is very joyful.
So how do they climb trees?
The detailed study of the climbing tree by the crucian carp was first reported by the Danish scientist Dardorff in 1791.
In his research, he mentioned that while exploring the jungles of Tranquiba, he stumbled upon a fish that could climb trees. The fish climbs up to 5 feet (about 1.5 meters) of palm trees to suck nectar and juice.
When it is necessary to climb a tree, the crucian carp will open its gill cover, get stuck in the crevice of the trunk to support itself, support itself in another crevice with spikes on the fin, swing its tail upwards, and then repeat this action until it reaches its destination.
The crucian carp is covered with thick, hard scales, as if it were wearing armor. There are also sharp hard spines on the dorsal fin and tail, which can be said to be both attack and defense.
Moreover, they are ferocious and eat everything, and whenever the owner of the pond finds the crucian carp in the fish pond, he will feel that things are not very good.
Because the crucian carp will not only eat the fish and shrimp in the pond, but also multiply in large quantities. In addition, crucian carp likes to burrow into the mud under the water, and many farmers are often injured by mistake.
The survivability of the crucian carp is extremely strong. Some researchers have done experiments to put the crucian carp in a certain concentration of pesticide environment, and they can still live normally.
As mentioned above, they have super reproductive ability, so in the Mainland Guangdong region, the crucian carp is one of the few species that causes headaches for the local people.
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