"These large bees are the first soldier bees to be discovered by scientists. "Researchers at the University of Sussex discovered these unique bees that guard the nests of Jatai bees (Tetragonisca angustula). Jatai bees live in trees and small cavities throughout Brazil.
In the video you can see them circling around the entrance to the nest. Jatai soldier bees are heavier -- they have larger legs but smaller bodies -- and they do not have the ability to sting. Instead, they provide a warning system for the other bees against attacks by predators, such as robber bees (Lestrimelitta limao). Robber bees simply come into a hive and steal honey but a full-scale attack can destroy an entire colony. Despite being stingless, the soldier bees are able to fight off robber bee scouts looking for a meal by clamping onto the wings and preventing them from flight.""
via lifeslittlemysteries.com
