Bob Erlich, an Evergreen Park resident, has devoted his retirement years to promoting and caring for butterflies — and ...

The team of volunteers is trying to save monarch butterflies by cultivating milkweed — the only plant where they lay eggs.

A historic railway was converted into a railbike path; now you can ride that railbike to see these beautifully made-over ...

The popularity of native plants continues to grow, as evidenced by the fast-disappearing native plant offerings Saturday at ...

Hornworm caterpillar with wasp cocoon on its body. Image by PatMorgan via Pixabay. Many caterpillars not only process toxins through specialized enzymes but also store them in their tissues. This ...

Urban monarchs formed isolated populations with limited impact on migratory butterflies, suggesting city habitats can support ...

By late May each year, monarch butterflies (Danaus plexippus) return to the Berkshires from their winter home in the oyamel fir forests in the Sierra Madre Mountains of central Mexico, ...

Professor Elizabeth Crone, Department of Evolution and Ecology, checks a non-native milkweed in the San Francisco Bay Area for monarch butterfly eggs and caterpillars. Known for long-distance ...

Every fall, an incredible migration occurs through the state of Indiana, where millions of tiny monarch butterflies ... and the first spring caterpillars emerge. Ten to fourteen days later ...