Commensalism

Real World Example

Imagine you're hosting a casual dinner party, and one of your friends brings along a plus-one you weren't expecting. This unexpected guest enjoys the food and socializes, benefiting from the event, while you, as the host, don't particularly notice their presence nor feel any inconvenience. This situation is akin to commensalism in nature, where one species, like the unexpected guest, benefits from the interaction, while the other species, like the host, remains unaffected.