Symbiosis in animals is a close and often long-term interaction between two different species, where both of them benefit from the relationship. There are three main types of symbiotic relationships in animals: mutualism (both species benefit), commensalism (one species benefits while the other is neither helped nor harmed), and parasitism (one species benefits at the expense of the other). These interactions play a crucial role in the balance of ecosystems and the survival of many species.
