[News Feed] Migratory Songbirds Have A Specialized Night-vision Brain Area

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Neurobiologists have discovered a specialized night-vision brain area in night-migratory songbirds. They believe the area might enable the birds to navigate by the stars, and to visually detect the earth's magnetic field through photoreceptor molecules, whose light-sensitivity is modulated by the field.

http://www.sciencedaily.com/releases...0523234717.htm