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 number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...

Learn fascinating monarch butterfly facts that you should know. The ideal monarch habitat includes meadows, fields, marshes and pollinator gardens. These butterflies are seen across the U.S. and ...

The widespread use of pesticides, such as Roundup, has killed off milkweed plants, a crucial food source for monarchs.

Impress your friends with these facts about monarch butterflies ... of them can be spotted in North America. Use this ...

For the past three years, more than 200,000 western monarch butterflies spent their winters along the California coast — huddling together in tall tree groves, finding respite from the wind from ...

Fewer-than-usual monarch butterflies migrated through San Luis ... creating difficult conditions for the monarchs to survive in. In fact, California set new heat records every July during 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 ...