As the government shutdown drags on , Smithsonian museums, the National Zoo and other facilities are the latest to be caught in the fray, with the federal trust announcing the closure of all of its sites beginning on Sunday.

"We will update our operating status as soon as the situation is resolved," the Smithsonian announced on social media. "We do not plan to update social media other than to inform you of changes to our operating status."

The closure affects all of the Smithsonian's 21 museums, its research centers and the National Zoo.

As worried social media users expressed concern about the well-being of the animals at the zoo, the Smithsonian assured its supporters that the animals would still be cared for during the zoo's closure.

"All the animals at the Zoo and at the Smith

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