Ants use olfactory landmarks to navigate

Ants, like this one in Tunisia, were found to smell in stereo and use this sense to navigate. Scientists have found that the ant is the first known animal both to process the location of odors and to use that information to create a cognitive map. And for ants, that means their pair of antennae work overtime to recognize and process multiple odors simultaneously. In other words, it seems ants smell in stereo.  Markus Knaden and...

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