Monarchs on the Move
A Long Journey
Every fall, millions of monarch butterflies fly south to the mountains of central Mexico. Many of them pass through Texas on the way. This trip is called a migration. The monarchs spend the winter in the forests there and fly north again in the spring.
Milkweed Matters
Monarch caterpillars eat only one kind of plant: milkweed. A female monarch lays her eggs on milkweed leaves so her caterpillars have food as soon as they hatch.
A Warning in Orange
Milkweed contains a poison. Monarchs store some of it in their bodies, which makes them taste bad to many birds. Their bright orange wings warn birds to stay away.
*[Diagram: the life cycle of a monarch, with arrows from egg → caterpillar → chrysalis → adult butterfly]*
*Caption: A monarch changes four times during its life.*
Glossary: migration: a long trip animals take at the same time each year. chrysalis: the hard case a caterpillar forms around itself while it changes into a butterfly.