How Many Words Can Dogs Learn?
The average dog knows around 90 words. A few gifted individuals have learned over a thousand — and what they are doing with them is stranger than it sounds.
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The average dog knows around 90 words. A few gifted individuals have learned over a thousand — and what they are doing with them is stranger than it sounds.
Dogs fail the classic mirror test. But when researchers built a version using smell instead of sight, they passed — which says more about the test than the dog.
Dogs cannot do arithmetic, but research suggests they notice when the numbers do not add up, using the same brain region humans use for approximate quantity.
Dogs have a facial muscle wolves essentially lack, and it exists because humans respond to it. This is selection we did, recently, without meaning to.
The experiment that tested this is elegant and the answer is clear: the look appears when you look cross, whether or not the dog did anything.
Dogs do show paw preference, it seems to differ between males and females, and there is intriguing evidence linking it to temperament.