FILE - In this Dec. 9, 2011 file photo a Monarch butterfly sits on a tree trunk at the Sierra Chincua Sanctuary in the mountains of Mexico's Michoacan state. On Monday, Jan. 20, 2020, prosecutors in western Mexico have called in 53 local police officers for questioning in the Jan. 14 disappearance of a long-time promoter and protector of the wintering grounds of the monarch butterfly. (AP Photo/Marco Ugarte, File)
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