Fish species discovered through the skin

The mezzanine rockfish in the Pacific can absorb food through the skin, gills and stomach, international scientists claim.

Salmonella grouper in the Pacific Ocean.

Xinhua reported that New Zealand and Canadian scientists put a piece of the skin of the mezzanine fish into an amino acid solution to find out its effect. They found that the concentration of nutrients on both the inner and outer surfaces of the skin gradually increased. However, the concentration of nutrients on the inside only increases to a certain level and stops, while the concentration of nutrients on the outer surface increases continuously.

According to Chris M. Wood, a fish physiologist at McMaster University in Canada, the above feature shows that the skin of the quaily sardines can actively take nutrients into the body.

Chris Glover, a researcher at the University of Canterbury in New Zealand, identified this strange ability to help the mezzanine grouper survive in difficult times - when they don't get enough food.

The mezzanine grouper is shaped like a flat eel, but their tubular body contains a live wire, not a spine like an eel. They are considered transitional species between invertebrates and full vertebrates.

The discovery of the bizarre ability of the quinoa stone skin can help scientists better understand the transition from the skin-absorbing mechanism of the invertebrate (such as worms) to the absorption mechanism. nutrients by specialized digestive system of vertebrate animals (like humans).