Classic example in the NYC area, where first the friendly critters came back (bunnies, turkeys, bambis and such). The were inevitably followed by their predators. Last summer we had multiple instances of people getting attacked by coyotes, including a toddler in heavily populated Rye. Black bears are eating people’s garbage. Now there’s seals, turtles and dolphins in NY harbor, and I have even seen a few in Long Island sound. What happens on land will also happen in the water. To quote Jeff Goldblum (a first for me), nature will, uh, find a way.
Just wait until you have a 1000 # moose walk in front of your car on the highway some early morning. That happened today in Nashua , NH.