Eduard Kislinsky is an author of many wonderful photos of tree frogs. Their life and life of little amphibians and reptiles are in this post.
The evolution of the eye was not a special event/occurrence in the history of biological evolution. Our particular star releases it’s peak energy in the visible light spectrum; therefore, an organ with an aperture which processes information delivered by photons (in the visible light spectrum) would, through natural selection, be a practical development in the physiological realm. (and how about these cool froggies!)
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