Heard Natural Science Museum & Wildlife Sanctuary | 451 followers on LinkedIn. Bringing nature and people together to discover, enjoy, experience, restore and preserve our priceless environment. | The Heard Natural Science Museum & Wildlife Sanctuary, in McKinney Texas, is the result of Bessie Heard’s vision for the future and her commitment to the community and North Texas. Founded in 1967, the Heard consists of a 289 acre wildlife sanctuary and a natural science museum for the primary purpose of educating children about nature. The Heard exists to bring nature and people together to discover, enjoy, experience, restore, and preserve our priceless environment.