A bit on Pet Rocks.
Untitled Document
“Pet Rocks appear to have great longevity. In fact, the life span of Pet Rocks exceeds the lifespan of humans by many orders of magnitude. Therefore, studies comparing the nutrition of Pet Rocks to the nutrition of humans might lead to insights into prolonging the quantity and quality of human beings.”
-Carl A. Osborne, DVM, PhD, DACVIM
From Stones in the wild: A Pet Rock study