What Is the Symbiotic Relationship Between a Barnacle and a Whale?

The symbiotic relationship between a barnacle and a whale is known as commensalism, which describes an inter-species interaction that benefits at least one participant. In the case of whales and barnacles, the barnacles are the ones that derive true benefit from the relationship. The whales, on the other hand, are largely unaffected by their non-harmful parasites.

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