Synalpheus regalis, a eusocial shrimp, also is an example of an organism that seeks to increase its inclusive fitness.
The social shrimp Synalpheus regalis protects juveniles within highly related colonies.
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Synalpheus regalis is a eusocial shrimp that protects juveniles in the colony.
Queller and Strassmann (1998) distinguished between "life insurers", which include most Hymenoptera, where cooperation reduces the risk of total reproductive failure, and "fortress defenders", where cooperation enhances the defense of a commonly held, valuable resource.
Synalpheus regalis | Osmunda regalis | Academia Montis Regalis |