Reuters Pictures
Gray wolves are seen nearing a Bison in Yellowstone National Park in this undated handout photograph released on February 21, 2008. Gray wolves in the northern Rocky Mountains, listed as endangered for more than three decades, no longer need protection under the Endangered Species Act, the U.S. government said. Environmental groups disagreed, saying the species has not fully recovered and vowed to sue to continue to protect wolves from hunting and other methods of killing that the groups said would likely follow the government's move.