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

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

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

SAN DIEGO — U.S. Fish and Wildlife Service has proposed listing monarch butterflies as a threatened species and has considered some possibly contradictory ways to protect them, Nicholas Storer ...

Monarchs are among the most recognizable and best loved butterflies in North America, but you might have noticed fewer of ...

One of these collaborations is the planted butterfly gardens in and around the Chickasaw Nation. Thousands have become ...

These tiny machines may one day swarm from mechanical hives and boost crop production. The new technology aims to increase yields without harming nature. Longer flight and better efficiency ...

A rapidly-spreading invasive pest that was first discovered in Australia less than two years ago is causing massive destruction in thousands of suburban backyards. Over the past few weeks ...

SANTA CRUZ — Conservationists are concerned that western monarch butterflies may be teetering on the brink of collapse as the latest Western Monarch Count reveals a devastating decline.

Beauty on the Wing: Life Story of the Monarch Butterfly is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in the US state of California this winter, a foreboding sign for the future of the ...