Reasons to be Cheerful reports on the alarming decline of western monarch butterflies in California, with efforts underway to ...

Monarch butterfly populations have nearly doubled this year, an annual survey of the species found. At the end of each summer, the beloved pollinators migrate from southern Canada and the northern and ...

Monarch butterflies have multiple generations in a year, including the final one, which migrates south to wintering grounds ...

Add Yahoo as a preferred source to see more of our stories on Google. Mar. 8—The monarch butterfly is iconic in North America — but in Montana, it is a rare sight. That's why when Kathy Ross ...

Every Monday in August, Heidi Emmons is leading a group of citizen scientists into fields containing milkweed to count monarch caterpillars and eggs. The goal is to learn more about how monarch ...

Retired schoolteacher Tachi Dellinger pointed inside a mesh box, where three green chrysalises hung. “This one is starting to change color,” Dellinger said. “It will turn jet black ... when it's ready ...

Whether you’re a butterfly fanatic or simply interested in nature, the monarch butterfly is worth a study. Beautiful and serene, monarch butterflies have a unique lifespan. But how long do monarch ...

Photo Caption: This is one of a dozen winter monarch butterflies that were raised from larvae found by Bob Pish shortly before Christmas. Photograph by Bob Pish. During the 12 years this column has ...