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Journal Article
The American naturalist, ISSN 0003-0147, 01/2007, Volume 169, Issue S1, pp. S7 - S26
Birds are highly visual animals with complex visual systems. In this article, we discuss the spectral characteristics and genetic mechanisms of the spectral tuning of avian visual pigments... 
Vertebrates | Opsins | Wavelengths | Retinal pigments | Pigments | Primates | Birds | Evolution | Retina | Spectral sensitivity | Visual ecology | Cone oil droplet | Opsin | Visual pigment | Bird | Biological Evolution | Retinal Pigments - physiology | Animals | Ultraviolet Rays | Color Vision - genetics | Color Vision - physiology | Retinal Pigments - genetics | Birds - genetics | Birds - physiology | Physiological aspects | Visual pigments | Research | Cones (Photoreceptors) | Index Medicus
Journal Article
PloS one, ISSN 1932-6203, 12/2009, Volume 4, Issue 12, pp. e8152 - e8152
Journal Article