Researchers from the University of Bristol found that deer see the predator as green because they are colourblind. Instead of seeing tigers as humans do (right) they see a green blur instead (left).

Google Chrome browser with the 'Nordic Forest' theme applied, featuring a serene, dense green forest background. Google Chrome browser with the 'Nighttime New York' theme applied, ...

Jean-Michel Carnus ¹, Geerten M. Hengeveld ², Bill Mason ³, Sustainability Impact Assessment of Forest Management Alternatives in Europe, Ecology and Society, Vol. 17, ... an Introductory Background ...