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The name army ant (or legionary ant or marabunta [1]) is applied to over 200 ant species in different lineages. Because of their aggressive predatory foraging groups, known as "raids", a huge number of ants forage simultaneously over a limited area.
Eciton burchellii is a species of New World army ant in the genus Eciton. This species performs expansive, organized swarm raids that give it the informal name, Eciton army ant. [2] This species displays a high degree of worker polymorphism. Sterile workers are of four discrete size-castes: minors, medias, porters (sub-majors), and soldiers ...
Eciton army ants have a bi-phasic lifestyle in which they alternate between a nomadic phase and a statary phase. In the statary phase, which lasts about three weeks, the ants remain in the same location every night. They arrange their own living bodies into a nest, protecting the queen and her eggs in the middle.
The arrival of big-headed ants ‘spells almost certain doom’, one study found ... How an army of ants saved zebras from hungry lions in Kenya. Louise Boyle. January 26, 2024 at 12:20 PM.
Local arthropod densities remain stable even in the presence of a foraging colony of the ants, in sharp contrast to the decimation a colony of typical army ants imposes on local arthropods.2 Above ground foraging driver and army ants have been observed collecting upwards of 90,000 insects per day in their raids, a number which Even juvenile ...
Some soldier safari ants make tunnels to provide a safe route for the workers. Seasonally, when food supplies become short, they leave the hill and form marching columns of up to 20,000,000 ants, which constitute a considerable threat to humans, though they can be easily avoided as a column can only travel about 20 meters in an hour.
Driver ants. Driver ants, from the genus Dorylus, are found in the Old World, especially West Africa and the Congo Basin. Unlike the army ants of the New World, Old World army ants have a functional sting but rarely use it, preferring their razor-sharp, falcate mandibles for defense instead. Dorylus spp. colonies also reach larger sizes than ...
These ants have a highly specialized structure that minimizes light reflection and maximizes absorption. This coloration is known as ultra-black and is dark enough to absorb nearly all visible light.