Photo of the Day debuted on April 21, 2001, with this photograph of a Pygmy family setting out for a fishing trip in a flooded forest in the Congo. Celebrate ten years of daily National Geographic photos with this anniversary gallery featuring one picture from each year chosen by our editors. Knee-deep wading is bliss for camels in Chad's Archeď, a canyon whose trapped waters hold a zoological surprise. Fertilized by beasts' droppings, algae are eaten by fish that are preyed upon by an isolated group of crocodiles. A tagged northern spotted owl swoops toward a researcher's lure in a young redwood forest.