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The zoo is open! All visitors will require free entry passes and be required to follow safety measures. Free timed-entry Asia Trail/Panda Passes are required for the giant panda viewing.

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Earth Optimism: Saving Frogs with Science

Smithsonian Conservation Biology Institute scientists are saving frogs with science. Release trials in the wild begin spring 2017. On Earth Day weekend, the Smithsonian is convening the Earth Optimism Summit, an event about the science that's working to solve complex conservation challenges around the globe.