{"fact":"Crows don't just see quantities all at once; they can also count items presented one by one, like flashing lights, just as well as they can judge the number of items in a group.","context":"The crows’ average performance for the sequential (crow B: 70.9 ± 4.8%, crow J: 73.4 ± 4.0%) and simultaneous format (crow B: 77.7 ± 3.1%, crow J: 83.5 ± 2.3%) was significantly above chance for sample numerosities and presentation formats (Binomial test, p < 0.001).","source":"Helen M. Ditz; Andreas Nieder, Format-dependent and format-independent representation of sequential and simultaneous numerosity in the crow endbrain, 10.1038/s41467-020-14519-2","index":224}