Carbon dating of chicken remains in South America has provided evidence that Polynesians sailed to the Americas at least a hundred years before the Spanish did. Chickens are not native to the Americas, yet the chicken remains date to AD 1321 to 1407.
And, don't expect widespread Mad Cow testing to occur anytime soon in the US; the Bush administration is fighting to prevent a company from testing all their cows for the disease:
The Bush administration said Tuesday it will fight to keep meatpackers from testing all their animals for mad cow disease .
The Agriculture Department tests less than 1 percent of slaughtered cows for the disease, which can be fatal to humans who eat tainted beef. But Kansas-based Creekstone Farms Premium Beef wants to test all of its cows.
Larger meat companies feared that move because, if Creekstone tested its meat and advertised it as safe, they might have to perform the expensive test, too.
The Agriculture Department regulates the test and argued that widespread testing could lead to a false positive that would harm the meat industry.
A federal judge ruled in March that such tests must be allowed. U.S. District Judge James Robertson noted that Creekstone sought to use the same test the government relies on and said the government didn't have the authority to restrict it.
The ruling was to take effect June 1, but the Agriculture Department said Tuesday it would appeal -- effectively delaying the testing until the court challenge plays out.