What fish did the ancients domesticate?

The ancients once domesticated otters to help people catch fish.

Otter, a carnivorous mammal belonging to the genus Otter, is a semi-aquatic animal that often lives in rivers, lakes or streams and on the shore. Because of their claws and keen eyesight, otters can easily catch fish in the water. So in ancient times, people discovered these characteristics of otters and began to domesticate them, making them a right-hand man for fishing.

Otters are very good at swimming and can swim freely in the water. China's otter fishing technology was taught by fishermen from Southeast Asia and South Asia. In Bangladesh, otters are still bringing back fish for their owners. Otter fishing is also common in the stories of Nordic Scandinavia and Central and South American civilizations.

Living habits of otters

Otters hide in caves to rest during the day and come out at night. They usually live alone except during mating. In order to find more food, in addition to the breeding season, they often migrate from one river to another, or from upstream to downstream.

Otters are good at swimming and diving. Its soft body and long tail can reduce the resistance to moving in the water. When swimming in, its forelimbs cling to its body and push the water with its hind legs and tail. At the same time, it also acts as a rudder, making its body wavy and its posture is very similar to that of an eel.

The swimming speed is very fast, and it can swim more than 50 meters per minute, and the lifting and turning are very flexible. It swings back and forth in the water, turns left and right, and rolls freely. It also likes to swim around like a circle, rolling up sediment at the bottom of the water or small fish in the water, and jumping on the water like a dolphin in an emergency.

Reference to the above content: Baidu Encyclopedia-Otter