The number of monarch butterflies at their wintering areas in Mexico dropped by 59% this year to the second lowest level since record keeping began, experts said Wednesday, blaming heat, drought and ...

MEXICO CITY (Reuters) - The population of monarch butterflies in the Mexican forests where they spend the winter fell to the second-lowest figure on record this season, offering a grim snapshot of the ...

MEXICO CITYMEXICO CITY — The number of monarch butterflies at their wintering areas in Mexico dropped by 59% this year to the second lowest level since record keeping began, experts said Wednesday, ...

For the first time in California, citizen scientists can join the effort to track monarch butterflies thanks to Blu+, a new ...

MEXICO CITY (AP) — The first monarch butterflies have appeared in the mountaintop forests of central Mexico where they spend the winter, Mexico’s Environment Department said Saturday. The first ...

Forest monitoring found that only five hectares of the core zone were affected, mainly due to natural causes and marginally due to clandestine logging. Mexico City – Five hectares of the Monarch ...

FILE - Monarch butterflies land on branches at Monarch Grove Sanctuary in Pacific Grove, Calif., on Nov. 10, 2021. The number of western monarch butterflies overwintering in California dropped 30% ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MEXICO CITY (AP) — The number of monarch ...