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Watch now: Tucson's Semba, Penzi and Nandi the elephants take a swim to cool off
Elephant matriarch Semba takes a swim with daughters Penzi and Nandi on July 4. Semba taking a dip is a rare sight, according to the zoo. Instead, she enjoys to dust with dirt and spray mud on herself to keep cool and protect her skin. Video courtesy of Reid Park Zoo.

