Paratrechina longicornis - black crazy ant. Along a sun-soaked beach on a Panamanian island, ants drink from nectaries on the underside of a leaf. Many plants attract ants with nectaries, and the ants in return help remove the plant's herbivorous pests. Isla Contadora, Panama
A minor worker of Pheidole aberrans, a small but ambitious South American harvester ant, lugs a grass seed to her nest. Correa, Santa Fe, Argentina
Pheidole xanthogaster Jatun Sacha reserve, Napo, Ecuador
