Eusociality is a key concept in sociobiology, which is the study of the genetic and evolutionary bases of social behavior. Coined in 1966, the term “eusocial” describes an animal society—like that of bees, ants, shrimp, sponges, or others—largely made up of sterile individuals that work on behalf of the few reproductive members of the group, or in some cases the only reproductive member, and cooperatively care for the young. What are the only truly eusocial mammals? Discuss