Mother Nature Network: Antarctic warming has been a boon for one large colony of Adélie penguins, a finding that's surprising scientists. A recent study found that over the last 60 years, a colony of the birds on Beaufort Island in the Ross Sea, south of New Zealand, increased by 84 percent, from 35,000 breeding pairs to 64,000 breeding pairs. This increase has come as glaciers have retreated from the island, leaving more bare, snow-free ground, where the penguins make their nests, according to the study, published this...