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zebra finches

Young zebra finches have a group of nerve cells that may help them specifically remember their father’s songs instead of those of other adults. 

mouse nerve cell stimulation

MISS MATCH  After paw stimulation, nerve cells in the brain of a 7-day-old mice become active (top row, left), but blood doesn’t show up (bottom row, left). A 13-day-old mouse has larger nerve cell responses (top row, middle), but still no blood — that doesn’t appear until adulthood (bottom row, right). Red signals higher nerve cell activity and blood flow. 


HOOKED ON HABITS  Cocaine addicts aren’t just hooked on the drug; they’re also more likely to hang on to other unrelated habits, a new study suggests.

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