The insects covered its largest area since 2018, despite threats from habitat loss, climate crisis and pesticides ...

Mexico's monarch butterfly population jumped 64% in 2026, offering hope even as experts warn the species remains at risk of ...

A key monarch butterfly population is showing signs of improvement this year, but scientists warn the species remains in long ...

Monarch butterfly numbers are flying higher, but they still have many miles to go. According to a pair of 2025-2026 reports from the World Wildlife Fund and partners, the population of eastern monarch ...

A first look at new research from the forests of central Mexico.

Monarch butterflies just scored a modest win in Mexico's forests. A new World Wildlife Fund Mexico survey finds that eastern ...

But conservation groups say the numbers are still much too low to avoid the risk of extinction in North America.

Two new reports estimate a 64% increase in species population and a significant decrease in forest degradation in the butterfly's winter home ...

Inside the Monarch Butterfly Biosphere Reserve, a new cultural center helps protect wildlife, and sustain the local community.

Every year, millions of Methuselah or super generation monarchs overwinter in the oyamel fir forests of Central Mexico after a 3,000-mile journey from Canada. Then in spring, they start the whole ...

MEXICO CITY, Mexico — The number of monarch butterflies wintering in the mountains west of Mexico City rebounded this year, doubling the area they covered in 2024 despite the stresses of climate ...

MEXICO CITY -- The number of monarch butterflies wintering in the mountains west of Mexico City rebounded this year, doubling the area they covered in 2024 despite the stresses of climate change and ...