The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading the way. The magnetic compass is the last unknown sense in migrating animals.

Monarch butterflies inspire awe through migrations that span thousands of miles across North America—a cycle repeated generation after generation. Their long-term survival, however, depends on a ...

Amid the eucalyptus groves at Natural Bridges State Beach in Santa Cruz, local bug enthusiast Sasha Hernandez squinted through the draping green leaves, searching for flashes of black and orange — the ...

Amid the eucalyptus groves at Natural Bridges State Beach in Santa Cruz, local bug enthusiast Sasha Hernandez squinted through the draping green leaves, searching for flashes of black and orange — the ...

Each fall, millions of monarch butterflies fly across Texas skies on their 3,000-mile journey to the mountains of central Mexico. The state’s position in the center of the migratory route makes it ...

Scientists used tiny new sensors to follow the insects on journeys that take thousands of miles to their winter colonies in Mexico. Scientists used tiny new sensors to follow the insects on journeys ...

DENVER, Colorado — When artist Juls Mendoza puts brush to canvas, every stroke carries meaning. Throughout his many years of professional work, there is one image his brush returns to again and again: ...

Monarch butterflies migrate to California each fall to escape cold weather and cluster in coastal groves from October to February. Key viewing spots include Natural Bridges in Santa Cruz, Pismo State ...

The monarch butterfly, Texas' official state insect, is in the middle of its 2,200 mile migration from Canada to Mexico — and you may be just in time to witness the remarkable journey. When is peak ...

PACIFIC GROVE — Longtime residents love to regale Natalie Johnston about the days when they had to sweep piles of western monarch butterflies off their front porches. They tell tales of teeming ...

It's been an unusually hot fall in Texas, and that may explain why the iconic southbound march of the monarch butterfly appears to be slowing to a crawl. Texas' weather this year may offer a clue.