A team of researchers at Columbia University has carried out experiments with macaques and in so doing has found evidence that suggests they are capable of inference-based thinking. In their paper published in the journal Science Advances, the group describes the experiments they carried out and what they learned from them.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/experiments-suggest-macaques-are-capable-of-making-decisions-based-on-inference