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This Concept Map, created with IHMC CmapTools, has information related to: birds, Fly because Feathers, Birds make Eggs, Beaks to get Food, Hollow Bones causes Light body Weights, Birds have Two Feet, High Metabolism that causes Rapid Digestive Systems, Constant Body Temperature because Insulation, Birds have Constant Body Temperature, Birds have High Metabolism, Birds can Fly, Constant Body Temperature because Warm-Blooded Animals, Birds have Beaks, Fly because Two Wings, Constant Body Temperature because Feathers, Fly because Hollow Bones