Robuta

A conservation group is planting more than 30,000 milkweed plants throughout California in the hope of giving Western monarch butterflies new places to breed.

A gallery of spectacular photos of monarch butterflies, as they migrate south to central Mexico and regions of southern California.

Migratory monarch butterfly populations have fallen into a tailspin in recent years. Scientists fear that in a classic case of good intentions gone awry,...

The Trump administration said Tuesday that federal protection under the Endangered Species Act for monarch butterflies is still a few years away. The reason?...

The U.S. Fish and Wildlife Service has proposed to list the monarch butterfly as a threatened species under the U.S. Endangered Species Act, as announced today...

Thousands of orange and black butterflies are clustering for warmth amidst stunning scenery.

Monarchs face many risks that are resulting in declining population. Pesticides that are used to control insects and weeds have harmful unintended consequences...

The once common migratory monarch butterfly is now listed as an endangered species due to severely dwindling numbers in the past few decades.

Monarch butterflies wait out the cold, windy and wet weather at Ottawa National Wildlife Refuge before flying to the forests of Mexico for winter.