Although one can only infer what early hominins ate, there is considerable evidence that meat consumption contributed significantly to the diet and that cooking was an essential development once controlled fire was available 800,000 years ago and perhaps for more than 2 million years(Carmody& Wrangham, 2009: Luca, Perry. & Di Rienzo. 2010). This speculation is based on stable isotope ratios, dental morphology dental wear patterns, and relative volume of the various intestinal segments(Milton, 2003) all of which indicate a diet of mixed origins