In the United States and Canada, river otters have returned to the Great Lakes region after decades of absence, signalling cleaner waterways and recovering ecosystems.
Kazakhstan is restoring tiger habitat by planting tens of thousands of trees as part of an effort to reintroduce wild tigers to landscapes where they disappeared more than 70 years ago.
Atlantic puffins are making a comeback in Maine, USA, thanks to years of restoration efforts that rebuilt nesting spaces and coaxed the birds back to thrive in once-lost habitats.
For the first time in over a century, sockeye salmon are able to return to one of their native waterways: British Columbia's Okanagan Lake.
