Do Flies Know Fear?
When fruit flies respond to the threat of an overhead shadow, is that fear?
The response to visual threats includes many essential elements of what we humans call fear and David J. Anderson of the Howard Hughes Medical Institute and the California Institute of Technology and colleagues write in a new paper that their work on fear in flies are a step toward dissecting the fundamental neurochemistry, neuropeptides, and neural circuitry underlying fear and other emotion states.
"No one will argue with you if you claim that flies have four fundamental drives just as humans do: feeding, fighting…