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, ...

Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about one of Earth's ...

Monarch butterflies typically live for a few weeks ... The plants bloom orange, pink or white flowers in the spring. During the fall they release seeds attached to wispy white stems that catch ...

FILE - A monarch butterfly on milkweed in bloom ... Milkweed is a thick-stemmed, leafy plant that blooms tufts of pink flowers each spring. Xerces recently received a $300,000 federal grant ...

Tens of millions of monarch butterflies are on an epic aerial journey home. They've spent the winter hanging out in trees in a forest on a remote mountain in Mexico, resting up after flying all ...

The pretty plant, which sports pink, purple or orange flowers ... Designating of the migratory monarch butterfly as threatened would allow for further conservation efforts to prevent their ...

Monarch butterflies are migrating north and have ... The plants bloom orange, pink or white flowers in the spring. During the fall they release seeds attached to wispy white stems that catch ...