For the first time, scientists have found animals that do not need oxygen!
The parasite “Henneguya salminicola“, belonging to the genus Misozoa, is the only animal in the world that does not breathe. Microscopic and genomic analysis has shown that “Henneguya salminicola” does not have the mitochondrial genome used in respiration. Therefore, the two most important stages of respiration, where the zeron action is performed in the presence of oxygen, do not occur in their body.
Interestingly, the evolution of animals from a single cell to a multicellular organism is considered normal. But in the case of Henneguya salminicola the opposite is true. This organism evolved as a single-celled animal. Characteristically, H. salminicola was similar to other parasites in the Misozoa class, but evolved over time and became extinct.
“Gradually the parasite loses tissue, nerve cells, muscles. And now we know they have lost their ability to breathe”
– said Dorothy Hachan, an evolutionary biologist at Tel Aviv University in Israel.
So how does this parasite gain strength?
Apart from oxygen combustion, is there any other method of energy production in the organism? The answer is still unknown. Researchers are continuing to do more research on this.