The other day my son looked out the window and called out, “There’s a monarch butterfly!” This was exciting because we have never noticed a monarch on our butterfly bush before. At this time of year, we knew this was a monarch who was on its long journey south to Mexico. A couple of days later, we saw another monarch stop by to replenish itself as well.
The monarch is the only known butterfly to migrate like birds. Other butterflies can usually overwinter as larvae (the caterpillar) or the pupae (the chrysalis). It’s amazing that the monarchs know where to go without having ever made the journey before.
In the spring and summer, three to four generations of monarchs make a long journey north from Mexico to the northern U.S. and Canada. After a life cycle from egg (approximately 4 days), to caterpillar (for about 2 weeks), and then chrysalis (10-14 days), the insect transforms into the adult stage, a fully-grown monarch butterfly. The adults live for only 2-6 weeks, and after laying its eggs on the milkweed plant, it will die.
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