Australian rogozub, or barramunda - one of the most interesting and rarest fish in the world. This is a real marine fossil - the most primitive of lungfish, one can say, an evolutionary unique, since all the relatives of the Australian bastard, now extinct, are close to the forms from which the first terrestrial vertebrates went.

Rogozub, or barramunda - one of the most interesting and rarest fish in the world

Externally, the barramunda is peculiar: a thickened body, a flat tail, a pair of fins, small eyes, teeth resembling millstones. The length of some specimens reaches more than one and a half meters. Wide and thick scales well protect the corpuscle from natural enemies, but can not protect it from humans. The first settlers in Australia found this fish not just edible, but excellent tasty. Therefore, it was caught in such quantity that now there are literally few copies left. Rogozub lives only in eastern Australia, Queensland, and here in only two rivers - Vernet and Mark. These rivers dry out in the summer.

In place of the riverbed, muddy pools of stagnant, oxygen-deprived water form. All fish, remaining in such reservoirs, die, but the rogozub, as a rule, survive. The fact is that along with the gills, the corpuscle has lungs, although it can not live outside the water, pulmonary breathing helps it survive in dry periods. Both exhalation and inhalation are produced through the nostrils, while the jaws of the fish are tightly closed. In the period of drought, when the rivers dry up and become shallow, the daggers experience this time in the pits with the preserved water. Rogozub leads a sedentary lifestyle, spend most of his time lying belly on the bottom or leaning on paired fins and tail. It feeds on various invertebrates.

Spawning stretches and takes a gap from April to November. Peak spawning reaches in September-October, with the onset of the rainy season. Caviar roe is laid mainly on water vegetation, not showing any further care for the offspring.

The Australian rogozub remained completely unknown until 1871, when, having existed for many thousands of years, he almost disappeared after a brief meeting with a man. Lungfish are not considered to be the direct ancestors of amphibians, they apparently developed in parallel, but this is very interesting for researchers.

Rogozub eat for food. Its reddish meat is very much appreciated by local residents - both aborigines and settlers. Currently the species is under protection, its fishing is prohibited.