Old Rip was a reptile with quite a legend. Some people believed that he survived a 31-year entombment in a courthouse cornerstone, and he became celebrity, even gaining an audience with President Calvin Coolidge. But was it all a hoax?
Research:

Robert Moses and the Shaping of New York, Part 2
42:12

Robert Moses and the Shaping of New York, Part 1
41:59

SYMHC Classics: Eradication of Smallpox
43:25