A Monarch Named Chew Flew From Utah to Mexico, the First Radio-Tracked Proof of a Western Butterfly Making the Trip
Nature World News | 11.11.2026 12:06A monarch butterfly nicknamed Chew left northeastern Utah on Sept. 2 and was detected on Oct. 11 in Santa Catarina, in the Mexican state of Nuevo León, according to the U.S. Fish and Wildlife Service. It is the first radio-tracked evidence of a monarch from west of the Rocky Mountains joining eastern monarchs on the journey to Mexico.
