The scientific name for methanogens is Methanobacterium thermoautotrophicum. Methanogens produce methane and are common in wetlands. They are responsible for the production of marsh gas.
Methanogens are microorganisms that are also found in a wide range of animals including humans, and the methane they produce is what causes flatulance and burping. Their bodies are rod shaped, and there are more than 50 species of methanogens known today.
Methanogens are one of the few organisms that live in environments where there is no oxygen, and they can thrive in areas where hydrogen, acetate, and carbon dioxide are abundant. They convert these substances methane.