They are not particular about their diet.
They would eat a tombstone if they could bite it.

A thistle grows about here which has needles on it that would pierce through leather, I think; if one touches you, you can find relief in nothing but profanity.

The camels eat these.

They show by their actions that they enjoy them.

I suppose it would be a real treat to a camel to have a keg of nails for supper.
While I am speaking of animals, I will mention that I have a horse now by the name of "Jericho." He is a mare.