Procryptocerus mayri Venezuela
Major and minor workers of the turtle ant Cephalotes pusillus engage in trophallaxis food-sharing behavior. Carrancas, Minas Gerais, Brazil
A soldier Cephalotes porrasi turtle ant seals the nest entrance with her head (left), while one of her sisters passes by. Soldiers act as living doors, allowing only members of their own colonies to pass. Armenia, Belize
