Symbiotic relationships are mutually beneficial interactions between two or more different species. These relationships can be classified into three main types: mutualism, where both species benefit; commensalism, where one species benefits and the other is neither helped nor harmed; and parasitism, where one species benefits at the expense of the other. Symbiotic relationships are common in nature and play a key role in ecosystem dynamics and stability. Researchers study symbiotic relationships to better understand how species interact and coexist in natural environments. They also investigate the impact of symbiotic relationships on ecological processes, species diversity, and ecosystem resilience.