Andrea Santarsiere

A U.S. District Court sided with wildlife advocates this week. It ruled that a federal agency ignored scientific studies that did not support its justification for killing animals.

When federal protections were lifted for the Yellowstone-area grizzly bear last year, conservation groups quickly got to work to reverse that decision. One of those attempts was recently thwarted when U.S. Fish and Wildlife Service announced they would not restore protections after a months-long review.

Three months after a predator-killing cyanide trap sickened a teenage boy in Idaho and killed his dog, the federal government is launching an expanded review of the devices.