It surprises me the protein level would be higher in digested material. Not sure I would understand an explanation of how it happens though. Good information.On coprophagy (poo-eating), it does seem that tortoises everywhere agree: poo is food. Icky as this is, I will point out that the droppings will have a much higher protein content than the original plant matter consumed, and is likely to be rich in animal amino acids that are not present in plants alone. Bon appetit