Long-tailed macaques (Macaca fascicularis aurea) on Piak Nam Yai, one of Thailand’s coastal islands, have been using stone tools for several decades — and possibly thousands of years — to eat shellfish and nuts, according to a study led by Dr. Michael Haslam from the University of Oxford, UK. Long-tailed macaque (Macaca fascicularis aurea) uses a stone. Image credit: University of Oxford. “We find that primates with much smaller brains...
