In two experiments, 6‐ and 10‐year‐old girls and boys played a computer game that simulated a hunting problem for an animal forager. Girls and boys were equally successful at this stereotypically masculine spatial task, and both girls and boys foraged optimally in terms of the theoretical predictions of the ecological theory of optimal foraging. Only one minor sex difference appeared: girls tended to use slightly more careful strategies than did boys. This finding corroborates other reports that sex differences in spatial problem solving may be due in part to girls' excessive use of ca