Alex and a chimpanzee named Sheba are the only non-humans that have so far been shown to represent the numerical value of a summed set, an ability once thought to depend on language.
Alex the Parrot’s Posthumous Paper Shows His Mathematical Genius.
Alex and a chimpanzee named Sheba are the only non-humans that have so far been shown to represent the numerical value of a summed set, an ability once thought to depend on language.
Alex the Parrot’s Posthumous Paper Shows His Mathematical Genius.