Context: Blue poison dart frogs have poisonous glands in their brightly colored skin. The bright colors serve as a warning sign that the animal is poisonous. The 's skin is adapted to ward off predators.
Figure: blue poison dart frog.
Which animal's skin is better adapted as a warning sign to ward off predators?
A. sharpnose-puffer
B. gray tree frog
From the given choices, choose the correct answer and respond with the letter of that choice.
Answer: A