BE ADVISED: On Saturday, April 20 and Sunday, April 21, nearby events at Exposition Park and the University of Southern California will impact traffic, parking, and wayfinding in the area. Please consider riding the Metro E (Expo) Line and exiting at USC/Expo station.
A sweeping new study by over 80 scientists including NHM researcher Vijay Barve identifies that butterflies originated in North or Central America 100 million years ago.