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A slack-jawed stare

A pelican opens it's mouth during warm weather in the zoo of Black sea's town of Varna east of the Bulgarian capital Sofia, Friday, Aug. 22, 2008. (AP Photo/Petar Petrov)
A pelican opens it's mouth during warm weather in the zoo of Black sea's town of Varna east of the Bulgarian capital Sofia, Friday, Aug. 22, 2008. (AP Photo/Petar Petrov)Petar Petrov / AP