National Arbor Day is April 28, marking the 151st anniversary of this tree-tastic holiday! Potter Park Zoo will be celebrating from 9:30 a.m. to 2 p.m. with activity and information tables presented by community partners and our fabulous PPZ volunteers. (activities included with admission). Learn about animals that live in the trees, how to identify different kinds of trees here in Michigan, make a pledge to protect trees, and more! All are welcome and teachers are encouraged to bring their students.