The Western population of the monarch butterfly hit a near-record low with fewer than 10,000 found living in California this ...

The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as threatened species and designate seven ...

NEW YORK, Jan. 31 (Xinhua) -- The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in U.S. California this winter, a foreboding sign ...

Thogmartin and other researchers have evaluated more than 200 scenarios for restoring greater than 1.3 billion stems of ...

Monarch butterflies are important culturally and ecologically across North America. Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and-gold chrysalises and ...

You may be aware that Monarch butterflies are endangered. This is due to the loss of habitat and the use of pesticides.

A favorite mystery of nature lovers is the behavior of the showy, black-and-orange Monarch butterflies, which appear to fly south in fall like migratory birds. Many authorities have doubted that ...

On Thursday, invertebrate conservation group the Xerxes Society released the results of their 28th annual Western Monarch ...

Scientists are grappling with a stark population decline of the western monarch butterfly after the species’ numbers hit a ...

Western Monarch Butterflies have reached record low numbers along the Central Coast, according to the U.S. Fish and Wildlife Service.

Some research indicates that certain types of milkweed such as Asclepias Curassavica the tropical variety sold at home ...

Western Monarch Count observed a peak population of 9,119 Monarch butterflies in California this winter, marking a sharp decline in the last few years. The count, administered by ...