With the changing contours of Anarctic ice shelves, scientists grew concerned that the continent's largest penguin species, Emperors, had lost significant breeding territories as the ice broke away.
British scientists, not content with data available from spotting colonies from ships or planes, turned to satellite photos. The large number of birds gathered together aren't really visible from space, but their poop is... Significant discolorations of Antartic ice from the concentration of thousands of birds is relatively easy to spot.
Audio: CBC Radio's Quirks & Quarks, June 6th. Host: Bob McDonald.
Earthquake, tsunami,
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