California's monarch butterflies are hanging on. But experts say severe winter storms likely led to a decline in this year's ...

The Western Monarch butterfly is expected to go extinct by 2080, but a handful of Southern California naturalists are at the ...

EPA must better assess the dangers of pesticides, especially in monarch breeding habitats in state’s Central Valley.

Ideally, these plants also will be California natives. “A garden that supports monarchs has nectar plants and native milkweed plants and a couple of types of milkweed,” said Laney.