Dog eat dog world

[ATOB2]

It's a dog eat dog world - what are the origins of this saying?

[lordalbert]

Mr Freidpup and Mr Winnalot had an idea ! Mr Freidpup quit the partnership and sunk all of his money into a factory making betamax tapes.Mr Winnalot on the other hand, bought a canning factory.Guess who uttered that famous saying.

[woolley]

It used to be 'dog does not eat dog' which comes from the Latin 'canis caninam non' - a dog does not eat a dog's flesh.