While they are gorgeous animals, these frogs pack a perilous punch. The vivid blue coloring is a forewarning for predators to stay away from the frogs. Because their skin is covered with glands that secrete small amounts of toxins, Blue Poison Dart Frogs are capable of paralyzing or even killing their predators. These toxins are used to protect the frog, not to capture their prey: Dendrobates azureus use their long, sticky tongues to retrieve their meals. What figurative language does the Arthur use in the paragraph?