Australian scientists discovered a population of dolphins among whom a technique of using sponges to catch small fish has been passed from mothers to daughters for the past 180 years. | Harper's Magazine

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Australian scientists discovered a population of dolphins among whom a technique of using sponges to catch small fish has been passed from mothers to daughters for the past 180 years.

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Australian scientists discovered a population of dolphins among whom a technique of using sponges to catch small fish has been passed from mothers to daughters for the past 180 years.

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