Do lemurs know when they could be wrong? An investigation of information seeking in three species of lemur (Lemur catta, Eulemur rubriventer, and Varecia variegata).

A total of 16 lemurs, including representatives from three species (, , and ), were presented with a food-seeking task in which information about the rewards location, in one of two plastic tubes, was either known or not known. We evaluated whether lemurs would first look into the tube before making a choice. This information-seeking task aimed to assess whether subjects would display memory awareness, seeking additional information when they became aware they lacked knowledge of the rewards location.

Effect of training and familiarity on responsiveness to human cues in domestic dogs (Canis familiaris).

Domestic dogs (Canis familiaris) seem to possess an evolved competency to follow human-given cues, often out-performing their wild progenitor the wolf (Canis lupus) on cue-following tasks. However, domestication may not be solely responsible for the socio-cognitive skills of dogs, with ontogenetic experience also playing a role. This research evaluated the effects of intensive training on cue-following behaviour using an unreinforced object-choice paradigm.