Hats on the ground; Iran's cave explorers support bat hibernation
Kimia Abdullahpour - IRNA Community Group Reporter
With the beginning of the cold season and the entry of a group of bats into hibernation, the caves, by temporarily abandoning their equipment and ceasing exploration activities in the caves, welcomed the "Hats on the Ground" campaign, a voluntary action to protect one of nature's most important mammals whose winter rest plays an essential role in their survival.
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