Computer-simulated Image of a Fruit Fly's Brain (image) University of Arizona Share Print E-Mail Caption When studied with advanced microscopic and imaging techniques, the brain of a fruit fly reveals astounding complexity, showing its composition by many discrete building blocks called 'neuropils,' each comprising one or more complex neuronal circuits. Credit Kei Ito et al. Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.