Dermatophytes

they contain small pieces of food, this likely contributes to their chance performance in their choices between strips in a support problem task, even in the simplest configurations. I should add that many of the problems encountered when comparing distantly related species may also apply to comparing members of the same taxonomic group or even the same species in different labs. Prosocial choices in chimpanzees, for example, seem to be highly sensitive to context and task. Even observational studies on different groups may reveal different results, as the post-conflict behaviour in chimpanzees has been shown to function as consolation for the victims of aggression in some groups, but as protection from redirected aggression in other groups. As flexibility is one of the key characteristics of higher cognitive systems, such variability should not be surprising. But understanding the contextual variation of given skills is everything else but simple, and seems likely to become a very hot topic in future research.