Now, after more than 30 years of trying to keep it around, the razorback sucker just earned a little breathing room. Fish and Wildlife Service has officially downlisted the razorback sucker from endangered to threatened under the Endangered Species Act. The bony ridge gives the razorback sucker its name, and it can grow to more than three feet long and weigh around 10 pounds. It's native to the Colorado River Basin and still calls parts of Colorado, Utah, Arizona, Nevada, New Mexico, and California home. Around western Colorado, we spend plenty of time talking about the Colorado River because of reservoirs, rafting, irrigation, and snowpack.