What is a traveling fish?

In the South China Sea and the coast of Africa, there is a strange fish with a wide and flat head, an oval sucker on the "back skull" and dentate wrinkles on the edge of the plate, like stamps, so it is called "? Fish "

Fish can't travel independently at sea, but it can be attached to sharks, whales, dolphins and turtles with this special sucker, or it can be attached to the bottom of a boat and swim in the sea without paying any price, and become a "free sea traveler".

Fish often stay with sharks. Sharks often carry many fish? Fish, virtually increased the burden. But sharks never hurt the weak? Fish, let nature take its course and wander around. And then what? With the protection of sharks, fish can be protected from big fish. At the same time, it also relies on greedy sharks to eat leftovers (ɡ ē n ɡ): it refers to leftovers. Make a living. Sometimes? When the fish is taken to a place rich in bait, it is separated from the shark, and it is scrambling to find food. When it is full, it is adsorbed to a new host.

Why can a fish's sucker firmly hold an object? It turns out that when the sucker touches an object, it will automatically squeeze out the water in the plate, making the interior a vacuum. Because of the different pressure inside and outside the disc, it will be sucked tightly.

/kloc-When Columbus discovered the New World in the 5th century, he first saw it in Cuba? Fishing: people enclose a fish pond in a small bay with stones and keep it in the pond? Fish, each one? The fish has a long rope tied to its tail. When sharks or tuna appear on the sea, put them quickly? Put the fish into the sea. When fish enter the sea, they immediately attach themselves to sharks or tuna. At this time, people just drag it back slowly with a rope and the fish is caught. Fishing with fish is really wonderful: strange and ingenious. Fishing method? The fish became a live hook. At present, this fishing method is still preserved in the South China Sea, Caribbean Sea, East Africa and the coast of Madagascar.