Ben Millam, a self described "aspiring geek" has come up with an inventive cat feeding machine. He trained his cat Monkey, to search for plastic balls hidden around the house, which, once the cat places them into the machine, activates the feeder and the ball is filled with cat treats. Monkey was trained using the "clicker" technique when desired behavior is signalled by a click and a reward. Millam said it took some time and patience to train Monkey, but now he can use the feeder just fine! Amazing!
Website: benjaminmillam
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