A virtual reality (VR) platform has given researchers new insights into how artificial light at night alters the way coral reef fish respond to predators. The study brings together, for the first time, the metabolic expertise of the University of Glasgow with an innovative immersive virtual reality (VR) platform designed at the Institut de Neurosciences de la Timone and implemented at CRIOBE (Center de Recherches Insulaires et Observatoire de l'Environnement).