Elephant Kept Stacking Stones Every Day — Then His Caretaker Figured Out Why

Working in the dark

With the stones scattered and no answers found, Linda finally left the zoo for the night. But right as she walked past the enclosure, Linda could already see Dali hard at work again. He was lugging stones, building a new pile in that same corner. The other elephants were already asleep, but Dali worked alone in the dark.