A close-up of the species Odontomachus kuroiwae.
Odontomachus are large, conspicuous ponerine ants found in the tropics and subtropics worldwide. These predatory insects are noted for their unusual mandibles, which are held open at 180ยบ and snap shut on a hair trigger.
Source: http://www.myrmecos.net/ants/odontomachus.html
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