[Solved] The NSDL established in A)August 1996 B)August 1998 C)January 1996 D)January 1998 Eusocial Group: A hierarchical social structure seen in certain animals, like naked mole rats and bees, characterized by cooperative care of offspring and division of labor. Monogamous: Pertaining to a mating system or relationship in which an individual has only one partner during their lifetime or at any one time. Monogamy Hypothesis: The theory that monogamy can evolve as a mating strategy that offers reproductive and survival benefits under certain environmental or social conditions. Haplodiploidy Hypothesis: A theory related to social behavior in insects, suggesting that the unusual sex determination system of haplodiploidy contributes to the evolution of eusociality, especially in bees, ants, and wasps.