Another common reason for a water heater to start leaking is when the tank builds up too much pressure inside. When this happens, the excess pressure will force the water to leak out of the tank to reduce the pressure. This most commonly occurs because the temperature on the hot water heater is set too high.
More about River Otter : Watchable Wildlife: River Otter - A description of the appearance, habitat and habits of the North American River otter, the only species of otter that lives in New York State.
What they look like: The River Otter is built for swimming - they have a streamlined body, short legs with webbed feet, dense fur that keeps them warm, a tapered tail, small ears, and nostrils that can close underwater. They can grow to be more than a meter long, from head to tail, and weight up to 14 kg.