From 2003 to 2019, amateur butterfly enthusiast Harlan Radcliff spent his lunch breaks observing butterflies on the grounds ...

Monarch butterflies are unique in their migration patterns. Eastern monarchs travel between Mexico and the U.S., spending ...

The study was one of several that assessed the effects of climate change on three species of butterflies whose populations are declining.

The natural phenomenon of the iconic monarch butterflies migrating south for the winter is a fascinating one - and it's one ...

Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...

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

The study was one of several that assessed the effects of climate change on three species of butterflies whose populations ...

Some of the largest clusters this season were found in Santa Cruz County, with 1,406 monarchs at Lighthouse Field State Beach ...

Western monarch butterflies are considered an iconic species because of their beloved status among the public and for their ...

A butterfly sits on a leaf at Monarch Grove Sanctuary in Pacific Grove ... Monarchs west of the Rocky Mountains typically overwinter along the California coast.

The number of monarch ... California to become New Denmark? Satirical petition seeks help to buy the state from Trump Monarch clusters were notably absent from the Goleta Monarch Butterfly Grove ...

and California wintering populations are 95% smaller than they were at that time. In response to these figures, the USFWS issued a December 2024 proposal to list the monarch butterfly as a ...