In the fall, monarchs in the United States ... their eggs and the sole food source for their caterpillars. Monarch migration is one of the longest insect migrations in the world, with some butterflies ...

"I really want to spread the word that we should not give up right now," said Isis Howard, a conservation biologist with the ...

The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

At its best, travel provides moments that remain etched in your memory for a lifetime. This could include occasions when ...

Monarch butterflies in the western U.S. have dropped to just 9,119 this year. In 2023, the count was 233,394, meaning a 96% decline.

MADISON, Wis. — The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing ...

In 2023, more than 16,000 butterflies were counted at one local grove. The most recent count was a tiny fraction of that.

The number of monarch butterflies migrating to California over the winter has hit a near-record low, according to the agency that conducts the annual count. The 28th annual Western Monarch Count ...

Before National Geographic published its famous August 1976 cover story detailing the search for the monarch butterfly’s wintering ... A 2,000-mile migration was thought to be a “foolish ...

For the past three years, more than 200,000 western monarch butterflies spent their winters ... insects and some mammals. Their migration also attracts visitors to California state beaches ...