When you see this in person you forget your in the middle of one of the largest cities on earth. The problem is travel a few miles down this river and see how polluted it becomes but that is slowly being changed with reintroduction of fish and the arrival of beavers.
For many years the zoo dumped water from a variety of exhibits directly into the river. The Community eventually took legal action and the zoo turned around and took leadership in cleaning up and preserving the river. Bronx Zoo Agrees To River Cleanup | Eric T. Schneiderman (from 2001)
