The monkeys on one Asian island reuse their stone tools many times – but on an island just 9 km away the monkeys throw their tools away after a few uses
Source:
https://www.newscientist.com/article/2221222-some-monkeys-reuse-their-stone-tools-but-others-just-chuck-them-away/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home