{"fact":"New Caledonian crows consistently choose a higher-quality delayed reward over a lower-quality immediate reward, even when a competitor is present.","context":"The crows were not more likely to select the low-quality, immediate reward depending on condition, i.e. they selected the delayed, high-quality reward irrespective of condition (Tukey contrasts: alone - competitor, z = -0.196, p = 0.845; alone - noncompetitor, z = -1.040, p = 0.298; noncompetitor vs competitor, z = -0.864, p = 0.388).","source":"Rachael Miller; James R. Davies; Martina Schiestl; Elias Garcia-Pelegrin; Russell D. Gray; Alex H. Taylor; Nicola S. Clayton, Social influences on delayed gratification in New Caledonian crows and Eurasian jays, 10.1371/journal.pone.0289197","index":402}