PLANTS - Neanderthals had knowledge of plants' healing qualities: study

Universitat Autònoma de Barcelona and the University of York, has provided the first molecular evidence that Neanderthals not only ate a range of cooked plant foods, but also understood its nutritional and medicinal qualities. Researchers found molecular evidence that one individual had eaten bitter tasting plants like yarrow and camomile.
http://phys.org/news/2012-07-neanderthals-knowledge-qualities.html