The insects covered its largest area since 2018, despite threats from habitat loss, climate crisis and pesticides
The population of monarch butterflies in Mexico increased 64% this winter, compared with the same period in 2025, offering a glimmer of hope for an insect considered at risk of extinction.
The figures, released this week by the World Wildlife Fund (WWF) Mexico, showed that the area occupied by monarchs expanded to 2.93 hectares (7.24 acres) of forest from 1.79 hectares (4.42 acres) the previous winter, the largest coverage since 2018.
“The monarch butterfly is the symbol of the trilateral relationship between Mexico, the United States and Canada,” Mexican environment minister Alicia Bárcena Ibarra said at a news conference on Tuesday. “Its conservation is a collective commitment we must maintain for the future.”
Every fall, tens of millions of the butterflies travel nearly 3,000 miles from Canada, across the US and finally to the forests of western Mexico. There, the orange insects cover entire trees and flutter through the air in spectacular fashion.
