Around 1800 approximately 60,000,000 bison (often called buffalo by the white settlers, or tatonka by the Sioux Native Americans) roamed the Great Plains of North America. By 1890 only about 500 remained after relentless slaughter by the non indigenous settlers, this plus the onset of bovine diseases caught from domestic cattle almost wiped out the North American bison. Today about 50,000 remain, contained on private ranches and in large National Parks like Yellowstone.
As many geocaches know we use small aluminium tubes called bison tubes to hide micro caches today, my research (yes I know, I only searched the net) came up with a company in the US called Bison Designs that began producing the tubes in 2001 for people to carry pills and tablets, someone thought they would be a good geocahe container, and as they say the rest is history.
So here we have two examples of both items, a bison, and a bison tube, located off Buffalo Rd, alongside Buffalo Creek in Ryde, happy hunting.