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 ...

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 ...

More news from Norfolk Found mainly in East Anglian marshland, milk parsley is the only plant the green and black striped caterpillars of Britain's largest butterfly, the swallowtail, will feed on.

As the chill of winter approaches, many look to an unlikely source for clues about the season ahead—the woolly bear ...