Tattooing cows to keep track of them
By Robert Frederick, KWMU
St. Louis, Mo. – A St. Louis start-up company is turning heads with its recipe for success.
Take one of those gadgets that millions of drivers have in their cars that lets them make drive through toll booths and make automatic payments.
Now take the microchip and antenna from one of those gadgets and shrink them so they're small enough to inject under the skin, like a tattoo.
You've just made a new kind of tattoo identification, and it's being used on cows.
KWMU's science reporter Robert Frederick reports.