The monarch butterfly life cycle begins with a whirl of wings in ... Several days later, the female is ready to lay eggs.

DESCRIPTION: The monarch is a large orange butterfly that flies with ... and winter generation monarchs live from five to nine months. LIFE CYCLE: Eggs take 3 to 8 days to develop and hatch into ...

For thousands of years, millions of monarch butterflies have migrated from the northern U.S. and Canada to Mexico for the winter. But exactly how they know where to go is still a mystery.

If there is no bird more American than the eagle, there is no butterfly more ... is a key driver of monarch decline. Milkweed, the only plant on which monarchs lay eggs, has been widely decimated ...