Cobras have a sting in their tails when it comes to interspecies face offs. Their intolerance for their brethren stems from the combination of territorial disputes and hunger. Cobras are the only snakes that are cannibals. Usually, the longest one wins by administering venom laced bite which stuns the opponent. The victor then seals the win by swallowing the ‘by then’ comatose unfortunate looser.