also believed that food sharing was key to ant society and he used an illustration of it as the frontispiece for his book The Social World of the Ants Compared with that of Man. In ants, individual colony members store food in their crops and regularly exchange it with other colony members and larvae to form a sort of "communal stomach" for the colony. In termites and cockroaches, proctodeal trophallaxis is crucial for replacing the gut endosymbionts that are lost after every molt. This shouldn… (More on Trophallaxis)