A new report highlights a hidden social cost of fish declines: It drives up human trafficking and child labor. The conservation policy report, led by researchers at the University of California at Berkeley, appeared last week (July 25) in the journal Science. Using data from the U.S. Department of Labor and the United Nations, researchers illustrate how decreasing fish stock fuels labor abuses. According to the report, a world with less fish means that fishers have to search farther out, go deeper, endure harsher conditions and fish for longer to attain the same yields they did a generation ago. 

Native peoples reintroduced fading species, restored habitats and stopped big industry in its tracks. Several species began coming back, many of them thanks to the efforts of tribal programs. Northwest tribes were pleased to see a record return of Chinook salmon to the Columbia River. A healthy wolf population flourished in Yellowstone National Park, strengthening the wildlife web around it. Here are some of the more notable wins, and the tribes involved in making them happen.