The naked chef? Chimpanzees can ‘cook’ and prefer cooked food – study
Findings suggest chimpanzees have the intellectual abilities required for cooking, which could have an impact on our view of human evolution
http://www.theguardian.com/science/2015/jun/03/chimpanzees-can-cook-and-prefer-cooked-food-study-shows
Really interesting as cooking food (on purpose) is highly likely to be one of the very early steps that put our ancestors on the path to becoming human (others being speech and farming). The theory goes that if chimps have a natural tendency to so something then our ancient ancestors likely had the same tendency as well (impossible to confirm or refute lacking a time machine).