At each location, placement of the cube (an actual cubic foot frame made of quarter-inch stainless steel rod) was critical—once it was in place it was not to be moved. Scientists specializing in each location assisted the photographer and his assistant in finding the best spot and identifying the creatures.

• Common Name: Eastern Gray Squirrel
• Scientific Name: Sciurus carolinensis
• Size: 7.09" (18 cm) body length.
• Location: Observed in the Central Park Cube