MOSH”S adored Alligator snapping turtle, Tonca, is turning 55 on Saturday, July 10. Tonca has been MOSH’s unofficial mascot since 1994. This is the only day of the year Tonca is removed from MOSH’s Hixon Native Plant Courtyard. Come celebrate with MOSH. Help support Tonca and his friends and experience different levels of interaction on his big day!