The sensory system of fruit flies detects CO2 via specialized taste neurons.


"Here we identify a novel taste modality in this insect: the taste of carbonated water. We use a combination of anatomical, calcium imaging and behavioural approaches to identify a population of taste neurons that detects CO2." (Fischler 2007:1054)

Journal article
The detection of carbonation by the Drosophila gustatory systemFischler, Walter; Kong, Priscilla; Marella, Sunanda; Scott, Kristin

Common Fruit FlyDrosophila melanogasterSpecies