The individual size and color of lungfish vary greatly. Some have stripes, some don't, but no two lungfish have the same stripes. For lungfish, their marks can identify them just like fingerprints.
Lungfish has the physiological characteristics of outer gills in the juvenile stage. Although it will remain with the growth and change, it has gradually become smaller and smaller. Their growth rate is very fast.
Lungfish's eyesight is not developed, but they have a keen sense of smell, and at the same time, they will send out a weak current to sense the living things around them, so they will make a sensitive response when foraging.
Although lungfish like to feed on live bait such as small fish and shrimp, their habits are not fierce. But in the process of feeding and changing water at ordinary times, we should be careful. The damage caused by their strong teeth and the biting force of the upper and lower jaws is very amazing.
In addition to directly breathing the air on the water surface, lungfish also has a very strange physiological phenomenon-summer sleep. In the natural environment of its origin, the hot summer dries up the river bed, which makes lungfish have to drill into deep soil, ball up their bodies, stop eating and reduce the consumption of various organs to the lowest point, and enter a dormant state. Until the rainy season comes and the riverbed overflows again, they will recover, break out of the ground and live a normal life. This unique and sad way of life enables lungfish to survive in extremely arid areas, which adds a mysterious color, a respect for life and a pleasure in raising them.