{"fact":"Jungle crows can spontaneously distinguish different amounts of food, showing a natural ability to pick the larger portion, especially when dealing with smaller quantities.","context":"The crows selected the larger quantity of the comparison item, suggesting a natural tendency towards maximizing energy input. … jungle crows are able to discriminate between different quantities of food items without prior training.","source":"Bezawork Afework Bogale; Masato Aoyama; Shoei Sugita, Spontaneous discrimination of food quantities in the jungle crow, Corvus macrorhynchos\n, 10.1016/j.anbehav.2014.05.012","index":404}