http://lljcwddkoyjq3xxtchl7a4i3ig6wqrg7nfxuzbzj4k4tbnb6pnzq7kid.onion/index.php?title=Animal_cognition&oldid=771
In follow-up studies, pigeons categorized other natural objects (e.g. trees) and after training they were able without reward to sort photos they had not seen before . [47] [48] Similar work has been done with natural auditory categories, for example, bird songs. [49] Honeybees ( Apis mellifera ) are able to form concepts of "up" and "down". [50] Functional or associative categories [ edit ] Perceptually unrelated stimuli may come to be responded to as members of a class if they have a...