The number of Monarch butterflies hibernating in Mexican forests decreased by 22% last year, and the number of trees lost from their favored wintering grounds tripled, according to an annual report ...

Every year, millions of monarch butterflies venture across North America – though in far smaller clusters than decades ago. Monarch populations have plummeted due to habitat loss, pesticide use and ...

It’s hard to overlook the brilliant orange and black wings of a monarch butterfly as it moves through a garden of flowers. It’s also hard to believe that the life cycle of this incredibly colorful ...

The monarch butterfly (Danaus plexippus) population has plummeted by 80% to 95% since the 1990s, depending on the region and ...

Monarch butterflies (Danaus plexippus) are some of the most iconic insects around. But they are uniquely threatened and earlier this month, Mexico’s Commission for National Protected Areas announced ...

One of the most recognizable and widely dispersed insects in North America may soon be headed for protections under the Endangered Species Act. In early December, federal wildlife officials will ...

Every year, the World Wildlife Fund Mexico partners with other conservation groups and local citizens to conduct a count of eastern monarch butterflies in their winter home, the Monarch Butterfly ...

John Dias is a three-time Emmy Award-winning reporter for CBS News New York. He is known for his engaging storytelling and commitment to delivering impactful news coverage. A broken wing almost ended ...

The tags weigh just 60 milligrams — about three grains of rice. Researchers have tagged more than 400 monarchs this year and ...

Professor Elizabeth Crone, Department of Evolution and Ecology, checks a non-native milkweed in the San Francisco Bay Area for monarch butterfly eggs and caterpillars. Known for long-distance ...

If you've always wanted to curate your own monarch butterfly garden but have been unsure of where to start or how to snag supplies without breaking the bank, we've got some good news for you. You ...

The California State Parks Foundation is asking Californians to track sightings of western monarch butterflies to help save the dwindling insect population. The California State Parks Foundation, a ...