Premise: Two midsummer cruises aboard Clipper Adventure Cruises' 140-passenger World Discoverer (July 8 and Aug. 9) will take you to the wind-swept cliffs of the Pribilof Islands in the Bering Sea, where cartoon-faced horned and tufted puffins stare.
Hypothesis: Tufted puffins are mating on the wind-swept cliffs of the Pribilof Islands in the Bering Sea.