Symbiont interactions refer to the relationships between different organisms living in close association with each other, where at least one of the organisms benefits from the relationship. This can include mutualistic interactions, where both organisms benefit, or parasitic interactions, where one organism benefits at the expense of the other. Research in this area seeks to understand the mechanisms by which symbiotic relationships evolve, the benefits and costs to each partner, and the impact of these interactions on ecosystems and evolutionary processes. Symbiont interactions can occur in a wide range of organisms, from bacteria living within the cells of larger organisms, to mutualistic relationships between plants and their pollinators. Understanding these interactions is important for understanding the diversity and functioning of ecosystems, as well as for developing strategies for conservation and managing interactions that impact human health and agriculture.