SALT LAKE CITY — The U.S. Fish and Wildlife Service said it is reopening the public comment period for a proposed rule to list the monarch butterfly as a threatened species under the Endangered ...

Two test sites were chosen: one along Interstate 10 near Ozona in West Texas and another at the Lavaca Bay Causeway on the ...

The plight of the monarch butterfly could cost farmers a valuable tool in the fight to protect crops from weeds and pests. An effort is underway to list the monarch butterfly as threatened under the ...

Thousands of monarch butterflies are making their annual arrival in Minnesota — one of the final destinations on the insects’ migration from Mexico. Fewer of the beloved butterflies are showing up in ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. In this Jan. 4, 2015 file photo, Monarch butterflies perch on a twig at the Piedra Herrada sanctuary, near Valle del Bravo, ...

John Maresh was driving west on Interstate 10 on a clear day in October 2016 when he ran into monarch butterflies. Literally. Along the 35-mile stretch between Sonora and Ozona, a “river of monarchs” ...

WEST FARGO – Revering walleyes, pheasants or bucks is about as Midwestern as loving summertime baseball, hot dogs and mom. In an honest conversation, you’ll hear an underscoring appreciation for pike, ...

The California State Parks Foundation is asking residents to report monarch butterfly sightings in an effort to support ongoing research into the species' whereabouts. The request comes ahead of ...

Several high-profile species — including the burrowing owl, Crotch’s bumble bee, western Joshua tree, western spadefoot toad, and the monarch butterfly — have recently been elevated to candidate ...