Free Admission Sunday from 10:00am - 5pm at Lincoln Park Zoo - see INFO below. Every day, zoo expertscurators, veterinarians, keepers, training and enrichment specialists, nutritionists, and animal welfare scientistscollaborate to ensure the animals at Lincoln Park Zoo receive care that promotes great welfare. With one of the largest zoo-based conservation and science programs in the country, Lincoln Park Zoo is dedicated to using science to conserve wildlife and provide better care. Today, zoo scientists are studying how wildlife use cities, leading conservation research in the savannas and forests of Africa, monitoring behavior to improve the welfare of zoo animals, and much more. More Info below.