Brookfield Zoo Run 2025. Get ready for an unforgettable day at the 2025 brookfield zoo run on sunday, september 8th, in beautiful brookfield, cook! It's your chance to make strides for wildlife conservation.
Proceeds from the event benefit the chicago zoological society’s animal care and conservation fund, which supports research and education efforts at the zoo and around the world. Each year more species lose their race for survival and disappear from the wild.