The mouth is a warm, wet, and nutrient-rich habitat that is ideal for microorganisms to flourish in. It's also like a playground for microorganisms since there are so many surfaces for them to adhere to, including the tongue, the spaces between the gums and teeth
Some experts believe this is related to biodiversity loss, or the continual reduction of Earth's many types of life. The present pace of extinction of many species is a thousand times greater than the historical background rate.
Microbial diversity refers to the variety of unicellular organisms, bacteria, archaea, protists, and fungus. The diversity of microorganisms now existing on Earth is well recognised and assumed to be immense, but the exact amount of microbial diversity is unknown.
Microbial diversity accounts for a significant portion of the lost biodiversity. And these microorganisms, which include bacteria, viruses, and fungus, are critical to the health of ecosystems.
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