A fabulous, yearlong celebration: 125 Days of Animal Birthdays, Zoo 125 Birthday Week, exciting activities, and the new Tails on the Trail primates exhibit. Starting April 17 to Aug 19, the zoo will host 125 Animal Birthdays. You can sponsor one of these days for $125*. Come and celebrate! Read the stories, see photo albums–visit the Zoo and join the party! Go here for a list of events.