The Xerces Society for Invertebrate Conservation says, along the California coast, 4.5 million monarchs overwintered in the ...

Monarch butterflies are important culturally and ecologically across North America. Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and-gold chrysalises and ...

The monarch butterfly population has ... and migration patterns — they are the only butterfly to migrate like birds. Millions of monarchs fly to Central America each winter, crowding together ...

From a distance, they appear like autumn foliage: millions of endangered monarch butterflies blanketing ... experience” was like “watching souls flying above.” “It’s so many feelings ...