Posted by: Rebecca Whitham, Communications Woodland Park Zoo hit a major milestone this week in the construction of our new Humboldt penguin exhibit , opening in May: We've filled the penguin pool for the first and last time! Why is that important? Well, to help "green" the exhibit, instead of traditional fill and dump practices, we will fill the penguin pool only once. Then, we will use the earth’s natural systems to ensure a pristine water environment for these endangered birds while preventing stormwater runoff from entering our lakes, thus contributing to the health of Puget Sound. With the green technologies, the exhibit will save approximately 3,000,000 gallons of water and 75,000,000 BTUs of energy each year! That’s the equivalent of saving 24 million pints of drinking water, and heating five, new two-bedroom townhouses each year. How are we saving so much water and energy? The exhibit will filter stormwater on site in two ways. First, it will collect rainwater fr