(DC) (National Zoo) Celebrate the start of summer with our free, family‑friendly Science Solstice Sunday, part of the Smithsonian’s annual Solstice Weekend!

Follow animal clues in an interactive scavenger hunt across the Zoo for a chance to win a prize, enjoy special animal demonstrations, and explore hands-on activity stations from Smithsonian scientists, researchers, and experts working around the world to protect wildlife and study nature