Infants and animals are able to understand approximate quantities of different types, in terms of relative proportions of the numbers of different sets of objects, provided the difference in numbers ...

Parents typically start teaching their children to count at an early age: one fish two fish, three little pigs, five little monkeys, and so on. Research has shown that kids don’t fully understand the ...

Helena Osana received funding from the Social Sciences and Humanities Research Council of Canada for this research. Jairo A. Navarrete-Ulloa receives funding from the National Agency for Research and ...