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

Female monarchs exclusively lay their eggs on milkweed, and, as mentioned above, it's the only thing caterpillars will eat. Content continues below A dwindling milkweed population has a direct ...

Migrating monarch butterflies need habitat of food, water and shelter so that these pollinators can survive their long migration.

Female monarchs exclusively lay their eggs on milkweed, and, as mentioned above, it's the only thing caterpillars will eat. A dwindling milkweed population has a direct impact on monarch numbers. Loss ...