Otter spotted in Bronx River for first time in a century after 50 years of clean-up

An otter has been spotted in the Bronx River for the first time in roughly a century, the result of 50 years of clean-up efforts in the once heavily polluted waterway in New York City. The sighting is seen as further evidence that restoration efforts in the area are working. The otter's presence signals a significant improvement in the river's ecosystem.