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VISITORS: Think Tank, Great Cats, Mane Grill and the Speedwell Foundation Conservation Carousel will close at 12 p.m. today in preparation for Brew at the Zoo.

Earth Optimism Day

Saturday, April 22, 2017
10:00 am to 2:00 pm
  • boy reaching to put his fingers in a cup of dirt
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Earth Optimism Day

On Saturday, April 22 from 10 a.m. to 2 p.m., spend Earth Day celebrating conservation success stories at the Smithsonian's National Zoo. This family-friendly event features fun activities and interactive demonstrations, including a conservation scavenger hunt!