These big, yellow butterflies are common in the eastern United ... but they can grow up to 5 1/2 inches across. Adults have four black parallel stripes at the top of each wing and a solid black ...

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 ... and ...

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 ... and ...