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The study, published in the Journal of Archaeological Science, indicates that recycling was an important component in the technological behavior of hunter-gatherers.

“In order to identify the recycling, it is necessary to differentiate the two stages of the manipulation sequence of an object: the moment before it is altered and the moment after,” Dr Manuel Vaquero, a researcher at the Universitat Rovira i Virgili and lead author of the study, explained to SINC. “The two are separated by an interval in which the artifact has undergone some form of alteration. This is the first time a systematic study of this type has been performed.”.