Commensalism

Commensalism is a type of symbiotic relationship between two species in which one species benefits from the association, while the other species benefits either nothing or very little. This type of relationship is an important part of many of the ecosystems found in nature as it often allows for species to expand their range or gain access to resources. It's also one of the primary drivers of evolutionary relationships between species, and can lead to increased biodiversity in an ecosystem. The most famous example of commensalism is found among the clownfish and anemones, where the clownfish are able to gain protection from predators while the anemones benefit from the nitrogenous waste produced by the clownfish. Commensalism can also be seen in humans, where beneficial microbes in the human gut help to break down food and protect against pathogenic bacteria.