Once you know the difference, it's easy to identify a viceroy butterfly vs a monarch. See what their wings and caterpillars look like.

Monarch butterfly migration is a long journey. Learn how these amazing butterflies make the trip, where monarchs migrate to and why.

Greece, N.Y. — Bartolomeo & Perotto Funeral Home unveiled its newly designated Monarch Waystation on Sunday, a conservation ...

The city of Phoenix has planted several gardens to support struggling monarch butterflies, including one at the downtown ...

Monarch butterflies, once a familiar sight, are plummeting toward extinction due to landscape-scale threats from pesticides, development and global climate change.

The iconic monarch butterfly has been declining for decades, and now the federal government is stepping in to stem the tide.

Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about the fascinating, fragile traveler.

The question this Earth Day is not whether we can save the monarch butterfly − we can − but whether we will.

U.S. officials decided to extend protections to monarch butterflies after warnings from environmentalists that populations are shrinking and the beloved pollinator may not survive climate change.

ASGA's vice president of science and innovation told sugarbeet growers the potential listing of monarch butterflies as threatened could be difficult for those who planted milkweed for them.

The population of the monarch butterfly — the official state insect of Texas — is continuing to decline.

The official state butterfly since 2000, monarch butterflies are facing a major ecological threat, according to experts. Local, Western populations of monarchs have declined by around 30% compared to ...