bombardier beetle hedgcock.jpg

'Gunsmoke' wafts around a researcher's hand after a bombardier beetle of the species Brachinus elongatulus blasted in response to being grasped by forceps. (Charles Hedgcock/University of Arizona/charleshedgcock.photoshelter.com) 'Gunsmoke' wafts around a researcher's hand after a bombardier beetle of the species Brachinus elongatulus blasted in response to being grasped by forceps.