human
What's the most important difference between a frog and a toad?
assistant
The most important difference between a frog and a toad is that frogs have smooth, moist skin, while toads have dry, warty skin. Frogs also tend to be more colorful than toads, with bright colors such as yellow, orange, red, or green. Toads are usually drab in coloration and can blend in with their surroundings.