A set of cutting and skinning tools is being hailed as evidence that our ancestors shared knowledge.
Baboons at Knowsley Safari Park in Merseyside have reportedly taken to wielding knives and sharp tools.
A bizarre incident at a bar in Brazil recently saw an intoxicated monkey go on a knife-wielding rampage.
A 63-year-old man made headlines this week by trying to fix his own hernia using a butter knife.