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Brainy Beasts: Elephants Never Forget—What They Smell

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According to a new report from the Proceedings of the National Academy of Sciences, elephants have such sensitive olfactory discrimination that they can determine different amounts of food just by sniffing it. Most animals use visual acuity to determine quantities of food, but this study shows that it’s important for psychologists to incorporate into experimental designs the ways in which different animals interact with their environment using all of their senses.
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