The champion of bouncing-- bouncing fish

In China's coastal high tide areas or brackish water estuarine shoals, there lives a small fish with a large and square head, a protruding eye and a rotational eye, and a muscle handle at the base of the pectoral fin, which can be used as an organ to support and crawl on land. the left and right ventral fins healed into a sucker.

Catfish have the habit of foraging out of water, whenever the tide goes out. It often relies on the pectoral fin muscle handle to crawl on the mud to find food, or climb to the rocks and mangrove bushes to prey on insects, or climb to the stones to bask in the sun.

When it comes out of the water, the well-developed Gill chamber is filled with air and the tail is immersed in water to assist breathing.

Living out of water has become its important habit. It can move lively on land like 260 feet, and the pectoral fin muscle handle can move back and forth freely, acting as the forelimbs of reptiles.

In order to enhance the ability to crawl on land, the anal fins become very low and the fins in the lower lobe of the caudal fin become thicker. Each step must match the forward movement of the pectoral fins, that is, first step on the ground with the pectoral fins, and then drag the body forward, the pace repeats very quickly. When the pectoral fin moves forward, the ventral fin plays the role of supporting the body.

When it is jumping for a short distance, it only depends on the activity of the pectoral fin, while when it is jumping at a distance of more than one meter, it must tap the ground with the help of the tail. It only jumps long distances when it is impatient or frightened. Whenever the tide goes out, you can see the catfish jumping around and chasing each other on the beach.

The catfish's vision is very sensitive, and it will jump back into the water or drill into caves or rock crevices when slightly alarmed.