The Roanoke Valley Reef is a satellite reef of the Hyperbolic Crochet Coral Reef, a project of the Institute For Figuring created by sisters Margaret and Christine Wertheim. Margaret Wertheim talks about the project in the TED video linked to from here titled "The Beautiful Math of Coral." This is an excellent introduction to the project.
Elvis, the 6-year-old pet of Dr. Tim Pennings, has found his way into the hearts of calculus lovers across the country by ingratiating himself in the world of calculus. Dr. Roland Minton discusses how he discovered Elvis and the relationship he has developed with both Elvis and Dr. Tim Pennings.