Monarch butterflies flutter around the globe
Photo: Luis Acosta/AFP/Getty Images
Generations of monarchs
Monarch butterflies can have up to four generations of offspring in one year. The first three generations live for about two to six weeks. The fourth generation, which can live up to nine months, are the butterflies who travel south for the winter, to either California or Mexico, according to Defenders of Wildlife.
Read more: Fewer monarch butterflies are becoming 'snowbirds'