Snake Steals Toxin from Poisonous Toads.

From the website:

It sounds like something straight out of a video game: A snake collects toxin by biting a poisonous toad and uses that venom as a defense against hawks and other predators. But that is exactly what researchers say the Asian snake Rhabdophis tigrinus does, based on studies of glandular fluid from hatchlings and adult snakes on two Japanese islands.

Link – via Boing Boing