One of California’s most iconic animals is in trouble. A preliminary tally of monarch butterflies that spend the winter along ...

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

Mid-season surveys have turned up roughly 8,000 monarchs across the western range, based on figures compiled by count ...

It is now the late season for butterflies in Goleta groves, and the picture is dismal. Only two butterflies were recorded in ...

Pacific Grove is known as ‘Butterfly Town USA’ for its role as an overwintering spot. As the insect’s population plummets, residents are coming to its rescue ...

I struggled to catch my breath, but it had nothing to do with the 10,000-foot altitude. All around me, millions of monarch ...

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

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.

While I suspect the majority of people here in Texas have seen a monarch butterfly, most probably don’t know that they make ...

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 ...

We have been encouraging our backyard milkweed to grow ever since we moved over five years ago. I have friends who have issues with the aggressive growth of milkweed. We don’t have this problem. We ...

Great Neck's Cynthia Zhang and Massapequa's Gia Providente earned the 2025 Gloria Barron Prize for Young Heroes.