© David Duneau/Science Learning situation: two “observer” females watch a green male copulating with a “demonstrator” female, as a pink male is rejected.
Paris, November 29, 2018 Researchers from the CNRS and université Toulouse III – Paul Sabatier (UT3) show that fruit flies possess all of the cognitive capacities needed to culturally transmit their sexual preferences across generations. The study, published on November 30, 2018 in Science , provides the first experimental toolbox for studying the existence of animal cultures, thereby opening up an entire field of research. While the cultural process is often thought of as being the unique to humans, the existence of persistent behavioral variation that cannot be ascribed to genetic or ecological variation in primate or bird strongly suggests the possible existence of cultural transmission within certain vertebrate species. For the first time, researchers from the Évolution et diversité biologique (CNRS/UT3/IRD)
1 laboratory and from the Centre de Recherches sur la Cognition Animale (CNRS/UT3), along with their international collaborators, have demonstrated that all of the mechanisms required for cultural transmission actually exist in the fruit fly. Drosophila , commonly called fruit flies, are known for their capacity to learn and copy the sexual preferences of their conspecifics after observing them copulating.
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