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

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in the ...

Monarch butterflies, known for their distinctive orange-and-black wings, are found across North America. Monarchs in the eastern United States spend their winters in Mexico and are counted by the ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...

Butterfly Pavilion near Denver is partnering with the Government of Mexico to conserve the winter habitats of monarch ...

Not that long ago, monarch butterflies would migrate in droves. However, over the last few decades, the number of these ...

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.

A winter count of visiting monarch butterflies found a steep drop from previous years, which has scientists worried about the ...

Monarch butterflies, known for their distinctive orange-and-black wings, are found across North America. Monarchs in the eastern United States spend their winters in Mexico and are counted by the ...

Overwintering populations of monarch butterflies in California have reached a near all-time low since records began, conservationists announced on Thursday. The ...