Climate warming reduces nectar quality in flowers, leaving migrating monarch butterflies with less energy to survive winter.

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

Across North America, monarch butterfly populations will begin their journey southward to warmer winter climates in Mexico, travelling across much of the United States, including Oklahoma, along their ...

Add Yahoo as a preferred source to see more of our stories on Google. Following the shorelines of the Great Lakes, monarch butterflies are gradually leaving Michigan as their instincts take them south ...

SAN DIEGO — U.S. Fish and Wildlife Service has proposed listing monarch butterflies as a threatened species and has considered some possibly contradictory ways to protect them, Nicholas Storer, vice ...

I recently heard on KUNR that monarch butterflies may soon be listed as a threatened species under the U.S. Endangered Species Act. Western monarchs are even more at risk than the eastern ones, with a ...

Monarch butterflies return to California for the winter in November in Santa Cruz, California. The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as a threatened species ...

As temperatures rise slightly, late-season plants produce weaker nectar, showing that climate change can affect pollinators ...