50 Years of Bronx River Clean Up Efforts Lead to the First Otter Sighting in a Century The Bronx River, once a polluted industrial wasteland, has been on a decades long journey towards redemption.
This week's sighting of a North American river otter marks a significant milestone: the first such sighting in over a century.
The river's transformation is a complex story, one that spans generations of neglect and gradual revitalization.