Fig. 10. Carbon dioxide release from individual Drosophila. (A) Cyclic CO₂ release by a single Drosophila mojavensis. This individual walked around its chamber during the first 12 min of the recording, then stopped moving for the last three minutes. (B) Representative recordings from two Drosophila melanogaster. The first individual performed cyclic CO₂ release, whereas the second one did not.