51³Ô¹ÏÍø

WASHINGTON, DC - JANUARY 29: A mole rat shows little interest in the returning visitors at the Smithsonian's National Zoo which opened today after the longest government shutdown in the history of the United States in Washington, D.C., January 29, 2019. Mole rates are naked and almost entirely blind. Their metabolism produces a unique complex sugar that, scientists thinks, prevents them from developing cancer. Thanks to the unconditional dedication of Zoo staffers and volunteers the animals of the Zoo were well taken care of during the shutdown. (Photo by Astrid Riecken For The Washington Post via Getty Images)