Ponds and bogs can have the most yin influence, but are also most likely to become stagnant. Here it is important that there is a wide variety of thriving wildlife to avoid stagnation. The plants around your water will affect it harmonizing qualities.
Black Wolf: This photo of a Black Wolf (Canis Lupus) was taken in December 2011 at Wolf Hollow in Ipswich Massachusetts. Wolf Hollow is a non-profit organization established in 1990 to teach people about the importance of the wolf in the wild. Black Wolves are most common in North America; about half of the wolves that are reintroduced into Wyoming's Yellowstone National Park are black.