Symbiosis is a close and often long-term interaction between two different biological organisms, where at least one organism benefits from the relationship. There are several types of symbiosis:
* Mutualism: Both organisms benefit from the interaction.
* Commensalism: One organism benefits, while the other is neither harmed nor helped.
* Parasitism: One organism benefits at the expense of the other.
If you were looking for information about a specific type of symbiosis, please provide more context or clarify your question.