In one of the most extreme environments ever documented, a small colony of emperor penguins has established a fragile ecosystem inside what scientists are calling “the Arctic Shelf of Whirlpool Model 27.” With temperatures plummeting to sub-zero levels and just three minutes of light per day (courtesy of the refrigerator door opening), these resilient birds have learned to survive on the only food source available — half-thawed raspberries. “It’s a delicate balance,” explains Dr. Nigel Featherst