, August 2, 2011, faces Northern paper wasp UPThe (Polistes fuscatus) proved to be exceptionally good science faces the other of this type.Bugwood.org Whitney Cranshaw, Colorado State UniversityBLOOMINGTON, Ind. — OSA may be the first biology, showing specific talents to science faces its own genus.
Polistes fuscatus people like wasps can be distinguished from each other by a person of their species. It turns out that, like people, these wasps are particularly good at recognizing faces compared to other objects, Michael Sheehan, University of Michigan reported July 28 2011 Conference behavior.
"To my knowledge, no other insects have showed that possess such sophisticated facial recognition is individual learning," said the scientist Emilie Snell-Rood, from the University of Minnesota. Study of how individuals of any species recognize mutually enrich the understanding of social scene.
Biologists have debated whether certain species — including humans and other primates, as well as sheep — has some specialized cognitive power to interpret the faces. Now it seems the discussion will be spread to the wasps.
In p. fuscatus colonies of wasps sport irregular schedules of markings, yellow, Brown and black. Recognizing each other quirky facial markings appear to minimize aggression as consorts clash for dominance, establishing joint nests.
Sheehan and his colleagues tested the wasps to learning by teaching them to select one of a pair of OSA faces vs. abstract patterns in black and one of the two or one-in-hand portraits of tracks. The scientists examined several pairs in each category.
Wasps p. fuscatus learned to choose between images of all three types. Even-legged on the six students scored the highest in the face of science in order to select the correct OSA, get a reply within about three-quarters of the tests.
As further evidence that stands in front of you is special for paper wasps, insects better not distinguishing the real images of faces and facial images also learning elements of mashed together in clumps or with their unnatural antennae blanked out.
Sheehan also examined different species, p. metricus, and did not find signs of any particular response to faces. But p. metricus has facial markings or varieties of p. fuscatus, nor whether the colonies have more than one Queen.
Contrast with p. metricus makes a particularly striking part of the case, said David Queller Washington University in St. Louis.
Tested on not very different smiley faces its own genus, p. metricus wasps unexpected results are above the opportunity in the choice between pairs of training. They learn the distinction between the variable faces p. fuscatus. However, their actions do not differ from the science of face parts mixed mashups or free antenna faces. For them, Sheehan concludes her face really is just another object.
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