Read the following passage. A team of scientists from the University of Wyoming went to the Himalayas to study how bumblebees - frequently found in mountain pastures collecting large quantities of nectar- coped with the lack of oxygen and reduced air density at high altitude. The researchers trapped the bees in Perspex boxes, gradually pumped out oxygen to mimic the thin air at higher and higher altitudes, and watched to see at what point the bees would stop flying. The boxes broke before the bees showed any signs of tiring. Armed with stronger containers, the team went back, eventually discovering that most bees were capable of flying at the equivalent of 24,000 feet, and two muscular species could fly at 29,000 feet (higher than Everest). There aren't any flowers at that height, but it explains how bees reach the Alps, say, or the Andes. Instead of flapping their wings faster in the thin air (which would soon have them suffering from lack of oxygen) they kept the same pace, but moved their wings in more complete arcs, from in front of their faces to behind their backs, displacing more air and allowing them to remain in flight despite the challenges. Suppose this article is for a general newspaper. Which would be the best title?

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