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FILE - In this Friday, Oct. 14, 2011 file photo, a little blue penguin is dried by a rescue worker after it swam in a water pool during a cleaning session to get rid of fuel oil from its body at the wildlife facility in Tauranga, New Zealand. Forty-nine penguins rescued from an oil spill off New Zealand were set free Tuesday, Nov. 22, 2011, after being cleaned and nursed back to health by wildlife officials. The birds released Tuesday are among 343 little blue penguins that have been cleaned of oil since a cargo ship ran aground on a reef near Tauranga on Oct. 5 and spilled some 400 tons of fuel oil. (AP Photo/Natacha Pisarenko, File)

Penguins return to wild after NZ oil spill rescue

The birds released Nov. 22 are among 343 little blue penguins that have been cleaned of oil since a cargo ship ran aground on a reef near Tauranga on Oct. 5 and spilled some 400 tons of fuel oil.