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Editor's note: They’re highly sociable, mate for life, and are one of the few species that can recognize itself in a mirror (if your almost-as-smart-as-you Border Collie has ever growled at itself in a mirror, be impressed). They’ve saved human lives by delivering critical messages during wartime, can detect cancer in radiology images, and have shown an ability to count and to recognize letters of the English alphabet. What are you waiting for? Get some beautiful Pigeon wallpapers now!
