The females die on the way, after laying eggs on milkweed plants.

This natural mechanism for seed dispersal is similar to that used by other milkweed plants.

The eggs are laid by the females during spring and summer breeding months onto the leaves of milkweed plants.

They obtain their unpleasant flavour from the milkweed plant.

Adults typically feed on the foliage and flowers of the newly developed milkweed plant.

With fewer milkweed plants, the Monarch does not have as much habitat to breed in.

These volunteers around the country raised monarch caterpillars on milkweed plants, the insect's food plant, from their area.

Adult male butterflies emerge in early June along with the first milkweed plants.

Like the monarch, this butterfly lays its eggs on milkweed plants.

Come spring, they are ready to fly back north, laying their eggs on milkweed plants, the leaves of which feed the young caterpillars.