Exclusively for guests age 21 and over, this lively evening will celebrate the Harvard Museum of Natural History's newest exhibition, Islands: Evolving in Isolation. Come with a friend or make new friends as you enjoy light appetizers, signature cocktails and music, while strolling through the Museum's 16 exhibitions. Friday, July 17, 7-10 p.m. Tickets include admission, appetizers and one signature beverage. Cocktails and other beverages will be available for purchase. Advance purchase $25; at the door, $30. Learn more.