A new study by the University of Exeter reveals that cats and donkeys are just as smart as dogs. Researchers studied 300 papers on the intelligence of dogs and other animals before concluding that goats, pigs, dolphins, seals and sea lions are just as good as dogs at following human pointing. Sheep, pigeons and chimpanzees are just as good as dogs at identifying human faces. Cats are just as good as dogs at identifying humans by their voice.
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