Add Yahoo as a preferred source to see more of our stories on Google. A monarch butterfly enjoys the flowers at the Tom Ridge and Julian Wetlands in this file photo. (Abby Drey/adrey@centredaily.com) ...

Add Yahoo as a preferred source to see more of our stories on Google. Following the shorelines of the Great Lakes, monarch butterflies are gradually leaving Michigan as their instincts take them south ...

The arrival of monarchs in the Northeast is one of nature’s most beautiful spectacles. Their grueling journey pays off, but it’s a miraculous flight that requires multiple generations of butterflies.

Monarch butterfly numbers are rising, but extreme Texas weather is killing milkweed—putting their crucial spring migration at ...

Did you know that monarch butterflies are the only butterflies known to make a two-way migration like birds? That’s right: ...

The monarch butterflies are making a comeback. For decades, the monarch butterfly population has been declining. Their winter ...

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. In Central Texas' "Funnel" corridor, the ...

Millions of monarch butterflies from across North America will begin their journey southward in search of a warmer winter climate. However, monarch butterflies face several threats, including humans, ...

SAN ANTONIO — Each spring, one of North America’s most remarkable wildlife events unfolds as the monarch butterfly begins its migration across the United States. During March, April, and May, millions ...