Mathematical ecologist Felipe Neves, a graduate student at the Universidade Federal do Paraná, demonstrates the use of an aspirator to collect ants. Many arboreal ants inhabit epiphytic plants; this bromeliad housed a large colony of Camponotus. Morretes, Paraná, Brazil
Azteca alfari worker ant guarding her Cecropia host tree. Gamboa, Panama
Carton nests of Azteca ants in the crown of a tropical tree. Napo, Ecuador
