Their host plant, milkweed, is the only plant where they lay their eggs and the only food their caterpillars will eat. While eating milkweed, monarch caterpillars grow 3,000 times their original ...

Did you know that caterpillars come from butterfly eggs? See pictures of butterflies laying eggs on their host plants.

Monarchs traveled to a remote part of Mexico, a journey they've made for thousands of years, and wintered there. Now tens of millions of the butterflies are on an epic aerial journey back north.

"Most people associate monarchs with milkweed, and it’s true that their caterpillars dine exclusively on the leaves of these plants. Adult monarchs, however, will eat from a wide array of ...

With an early May opening for the New Holland Butterfly Garden right around the corner, borough manager Dick Fulcher summed ...

If you have milkweed growing in ... the giant swallowtail caterpillars resemble bird poop and do a good job of entertaining area gardeners without eating much of the foliage on their satsuma ...

Take, for example, milkweed. After declining monarch populations ... Those are absorbed into the plant and can kill caterpillars that eat their leaves. To avoid this, purchase plants from ...

pointing to the monarch butterfly caterpillar which has evolved to eat only milkweed leaves. If the plant is crowded out of its natural habitat by black swallow wort, an invasive plant that is ...

pointing to the monarch butterfly caterpillar which has evolved to eat only milkweed leaves. If the plant is crowded out of its natural habitat by black swallow wort, an invasive plant that is ...