“Desert ants in Tunisia smell in stereo, sensing
odours from two different directions at the same time.
sniffing the air with each antenna, the ants form a mental ‘odour map’
of their surroundings.
“They then use this map to find their way
home, say scientists who report the discovery in the journal Animal
“Pigeons, rats and even people may also smell in
stereo, but ants are the first animal known to use it for navigation.” (Walker 2010)