Monarch butterfly populations have nearly doubled this year, an annual survey of the species found. At the end of each summer, the beloved pollinators migrate from southern Canada and the northern and ...

PACIFIC GROVE — Monarch butterfly numbers are down this year entering prime counting season, but experts aren’t panicking yet. “Butterfly populations are bouncy,” said Isis Howard, an endangered ...

After two straight years of increases, the number of monarch butterflies along the California coast dropped this winter. Monarchs show up each year along the coast to wait out the cold months. But ...

Butterflies of all kinds of species, in all parts of the country, have declined by one to two percent per year since 2000. Butterfly numbers have fallen by nearly a quarter since 2000 In the United ...

Last week, the monarch butterfly was officially designated as endangered by the International Union for Conservation of Nature. Scientists estimate that the species' population has dropped between 20% ...

PACIFIC GROVE — Monarch butterfly numbers are down this year entering prime counting season, but experts aren’t panicking yet. “Butterfly populations are bouncy,” said Isis Howard, an endangered ...

In the United States, perhaps no bug has been counted as often as the butterfly. "There's a lot of passion for them, they're very charismatic," says Collin Edwards, a quantitative ecologist at the ...