To teach Fido new tricks, he has to be focused and alert. However, scientists have found that the attentiveness of dogs changes over the course of their lives, The Australian reports. While younger pups are curious about most anything, scientists have found that older dogs are less curious about new items and lose interest quicker. The research, published in Frontiers in Psychology, notes that older canines can maintain attention just as well as younger ones, but only if they find the subject interesting.
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