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Life in Color: Blue

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Photo: Feet of a blue-footed booby
Photo: Schooling fish and whale sharkPhoto: Swirling school of blackfin barracudaPhoto: Penguins line the edge of an icebergPhoto: Polar bear leaping from the ice's edgePhoto: Glacial pool reflecting mountain Photo: Feet of a blue-footed boobyPhoto: Patterns in azuritePhoto: Swimmers descend a curvy waterslide Photo: Frosted fern leavesPhoto: A peacock spreads his trainPhoto: Veiled woman in doorway Photo: Courtyard of an Iranian mosquePhoto: Aerial view of island lagoon Photo: Glacier spilling into fjordPhoto: Night descends on a snowy Grand Canyon Photo: Yellowstone Park wolf in blue lightPhoto: Underwater view of Arctic sea icePhoto: Well-lighted igloo on an Arctic night
ENLARGEWALLPAPER

These distinctive webbed feet belong to a blue-footed booby of the Galápagos Islands. The bluer, the better: Courting males show off with a high-stepping strut—and those with brighter feet are more attractive to potential mates.

Photograph by Tim Laman

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