Monarch butterflies gained access to milkweeds after they evolved the metabolic trick of absorbing the cardiac glycosides by sequestering them in fat bodies Two species of milkweeds are abundant and ...

An eastern tiger swallowtail butterfly sips nectar from John Fanick phlox. The swallowtail butterfly family contains up to 700 species in the world, most of them tropical. More than two dozen are ...

Every butterfly gardener delights when showy swallowtail butterflies make an appearance. These butterflies are some of the largest in the garden, and their colorful wings and soaring flight patterns ...

A monarch butterfly lands on milkweed at Sun Valley Elementary School in San Rafael on July 29. (Sherry LaVars/Marin Independent Journal) Caterpillars eat milkweed leaves. (AP Photo/Herald Times ...

Two species of milkweeds are abundant and conspicuous from the plains of Colorado to the montane region of the Front Range. The showy milkweed, Asclepias speciosa, is common along roadsides and in ...

In 1976, a bill was introduced to adopt a Chinese mantid as Virginia’s official state insect. Entomologist Michael Kosztarab, founding director of the Virginia Museum of Natural History at Virginia ...