The Economic Times

In 2007, scientists found snakes on Japan's Ishima island didn't just eat toxic toads, they borrowed their toxins for defense

Snakes use toad toxins: Researchers discovered Asian snakes sequester toxins from toxic toads for defense. These snakes store borrowed toxins in specialized neck glands for predator protection. Island populations revealed the toad diet as the source of these potent compounds. Female snakes also pass these toxins to their young offspring.