Cow Magnets
stanfordmagnets.com/cow-magnets.htmlCow magnets are very popular with farmers, ranchers, and veterinarians since they are a well-known method of preventing hardware disease in cattle.
F's and V's Might Have Appeared After Agriculture - The Atlantic
theatlantic.com/science/archive/2019/03/farming-hunter-gatherers-labiodentals-linguistics/584950/If farming helped introduce f’s and v’s 12,000 years ago, it would challenge the principle that humans’ language abilities haven’t significantly changed since we first learned to speak.