every year, at the beginning of November, one of the most impressive natural spectacles in the world takes place in Michoacán, Mexico. Hundreds of millions of migrating monarch butterflies settle in ...

The hotter conditions produced more potent toxins in the milkweed. But the researchers said that surprisingly, the parasitic ...

Climate warming can impact plant quality, which in turn shapes the nutrition and immune defense of insect herbivores like ...

Monarch butterflies are well-known and beloved migratory pollinators in North America. NNehring via Getty Images For generations, monarch butterflies have traveled thousands of miles across North ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Monarch butterflies in Eastern North America complete one of the ...

Monarch butterflies perform one of the most mind-bending feats in the animal kingdom. Weighing just half a gram, they fly on wafer-thin wings through cities and across interstates, migrating up to ...

The Western monarch population has plunged more than 95% since the 1980s, and has a more than 99% chance of extinction by 2080. Western monarchs primarily spend winters along the California coast.

The anecdotes abound this year — friends reporting magical clusters of monarch butterflies on their walks, dozens of organizations offering free giveaways of native milkweed and projects to restore ...

SAN FRANCISCO — The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited sites in ...

It's almost spring! And March 12 is National Plant a Flower Day, the perfect day to bask in the sunlight and plant flowers that will help pollinators like the endangered eastern monarch butterfly. The ...

PISMO BEACH, Calif. – On Thursday, invertebrate conservation group the Xerxes Society released the results of their 28th annual Western Monarch Butterfly Count and recorded the second lowest ...