If any of you have an intrest in environmental archaeology, or reconstructing animal diets, I came across this article: http://www.geocities.com/archchaos1/article2/1.htm "Survival Patterns of Macroscopic Plant Remains in Goat and Sheep Dung" which is definately worth a look. It is about establishing biases caused by the ruminant digestive tract. Jonathon Smith http://www.geocities.com/archchaos1/index.htm