MEXICO CITY (AP) The number of monarch butterflies wintering in the mountains of central Mexico dropped 22% from the previous year, and the number of trees lost from their favored wintering grounds tripled.
MEXICO CITY (AP) The number of monarch butterflies wintering in the mountains of central Mexico dropped 22% from the previous year, and the number of trees lost from their favored wintering grounds tripled.
The number of monarch butterflies wintering in the mountains of central Mexico dropped 22%, and the number of trees lost in their favored wintering ground more than tripled compared to