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Compared to vertebrates, ants tend to have blurrier eyesight, particularly in smaller species, [44] and a few subterranean taxa are completely blind. [12] However, some ants, such as Australia's bulldog ant , have excellent vision and are capable of discriminating the distance and size of objects moving nearly a meter away. [ 45 ]
Crematogaster is an ecologically diverse genus of ants found worldwide, which are characterised by a distinctive heart-shaped gaster (abdomen), which gives them one of their common names, the Saint Valentine ant. [2] Members of this genus are also known as cocktail ants because of their habit of raising their abdomens when alarmed. [3]
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Because yellow crazy ants have generalized nesting habits, they are able to disperse via trucks, boats and other forms of human transport. [ 1 ] Crazy ant colonies naturally disperse through "budding", i.e. when mated queens and workers leave the nest to establish a new one, and only rarely through flight via female winged reproductive forms.
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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 ...
Acromyrmex ants have two "stomachs", including a dry, social stomach in which they can store food and later regurgitate to larvae, the queen and other ants. This is separated from the stomach proper by a small valve; once food enters the second stomach, it becomes contaminated with gastric juices and cannot be regurgitated.
This mechanism permits the ants to accumulate energy before striking or releasing the mandibles rapidly. O. bauri is known for its powerful mandibles, which can open up to about 180° and within 10 ms of being stimulated and can close within 0.5 ms, [2] which help with catching prey. The mandibles are able to sting and paralyze prey or crush ...