The latest count of western monarch butterfly populations is the third-lowest yet, after 2024 and 2020.

The all-time lowest population size in Pismo Beach was reported in 2020, when only 199 butterflies were counted at the ...

One of the world’s most iconic migrations is at risk, as rising temperatures alter the quality of vital flower nectar. View on euronews ...

The Xerces Society has released new results from its annual Western Monarch Count, showing that monarch butterfly numbers remain low at overwintering sites across California, including Pismo Beach.

The Trump administration has delayed protections.

Climate warming reduces nectar quality in flowers, leaving migrating monarch butterflies with less energy to survive winter.

Monarch butterflies have always been remarkably resilient. Every fall, these delicate orange-and-black travelers set out on a journey so improbable it borders on myth, flying some three thousand ...

Monarch butterflies and other native pollinators are experiencing steep population declines driven by pesticide and herbicide ...

Scientists say roosting monarchs took up 2.2 acres of Mexican fir forests this winter. That's the second smallest overwintering population on the books. Lawrence – Butterfly enthusiasts in the eastern ...

The Endangered Species Act is no help yet.

The anecdotes abound this year — friends reporting magical clusters of monarch butterflies on their walks, dozens of organizations offering free giveaways of native milkweed and projects to restore ...