Non-venomous Asian snakes 'borrow' defensive poison from toxic toads

Most snakes are born with poisonous bites they use for defense. But what can non-poisonous snakes do to ward off predators?

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<p><a href="http://www.physorg.com/news89399172.html">Non-venomous Asian snakes 'borrow' defensive poison from toxic toads</a></p> <p>Most snakes are born with poisonous bites they use for defense. But what can non-poisonous snakes do to ward off predators?</p>