Greater Yellowstone Ecosystem The Unusual Weapon Yellowstone Is Using To Combat Invasive Species By Maggie Mullen • Aug 20, 2019 Listen Listening... / Zebra and quagga mussels can devastate an ecosystem, and Yellowstone National Park is doing everything it can to keep them out. Most recently, that includes harnessing the power of a dog's snout. Wolves Might Not Be Biggest Threat To Elk By Ali Budner • Aug 6, 2019 Critics of wolf reintroduction in the Mountain West say the canine is the biggest threat to elk, but a new study says that’s not necessarily true. Environmental Advocates Sue Feds Over Bear Baiting In Idaho, Wyoming By James Dawson • Jun 7, 2019 A group of wildlife advocates is suing the federal government, saying they need to have more of a role in helping to prevent grizzly bear deaths on national forest land in Idaho and Wyoming. Listen Listening... / Click 'play' to hear the audio version of this story. Conservationists Want Hunters To Carry Bear Spray In Grizzly Country By Amanda Peacher • Apr 5, 2019 A coalition of conservationists is petitioning Idaho and Wyoming to make hunters carry bear spray when they’re within the Yellowstone ecosystem. Listen Listening... / Click 'play' to hear the audio version of this story. Grizzly Conflicts Often High In Fall, Says US Fish And Wildlife By Stephanie Daniel • Oct 12, 2018 Yellowstone National Park / Flickr Eleven grizzly bears in the Greater Yellowstone ecosystem have been euthanized since the beginning of September in a "particularly bad month" for grizzly conflicts, the Powell Tribune in Wyoming reports. That rate may be normal for the fall.