“Without Endangered Species Act protection, the Hermes copper butterfly would surely be pushed into extinction by Southern California’s rampant development ... The small, bright yellow-orange, spotted ...

Once, millions of monarchs wintered in California. But climate change, habitat loss, widespread pesticide use and disease ...

A winter count of visiting monarch butterflies found a steep drop from previous years, which has scientists worried about the ...

These big, yellow butterflies are common in the eastern United States and a treat to spot in the garden. Here's how to identify an Eastern tiger swallowtail butterfly and attract them to your own ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...

“The decline of the Hermes copper has mirrored the destruction of Southern California’s native ecosystems ... This small, bright yellow-orange, spotted butterfly is jeopardized by urban development, ...