New Type of Vision: It Detects Circular Polarized Light
	There are various types of vision, from the one detecting visible light to the others detecting ultraviolet light and linear polarized light. A new research published in the journal "Current Biology" describes a fourth type of vision never seen before in any animal: mantis shrimps (Stomatopods), a type of sea crustaceans, detect circular polarized light. Stomatopods, which are not real shrimps, are characterized by their vivid co ... [read more >>]
	21 March 2008, 03:54GMT | (c) 2008 Softpedia

Sunlight and Life Behavior
	We, people, depend on light. Over 80 % of the information we get is visual. That's why during the night we employ artificial light when we do not sleep, in order to prolong our activity. The dark is associated by human beings with fear, uncertainty and even dread. It's a legacy from the monkey stage: as diurnal creatures, we have a poor night vision, while many of our ancient predators, like leopards, lions and hyenas, see very w ... [read more >>]
	04 May 2007, 19:21GMT | (c) 2008 Softpedia