Times (UK): Penguins from the largest colony on mainland South America are being forced to swim the equivalent of two marathons farther to find food because of the effects of climate change. The survival of the Magellanic penguin colony at Punta Tombo, on the Atlantic coast of Argentina, is being threatened by the increasing distances the birds must travel to feed themselves and their chicks, research has shown. Dee Boersma, of the University of Washington in Seattle, said that Punta Tombo …