Where temperature regions, some amphibians go into hibernation. They seek out mud, trees, or caverns in which they remain in a state of inactivity for periodsranging from two to eight months, until the environment is again warm enough. Some amphibians are considered moderatly itellegent. They are known to communicate with each other by calls or croaks that indicate mating, distress, or territorial concerns. Sounds are made by the passage of air across the vocal cords.
Male frogs have vocal sacs on either side of the throat.
These act to amplify wounds. Some frogs and toads even sing in chorus. Frogs and toads have a strong sense of location. When taken from their territories or breeding grounds, they can find their way back by smell and instictively by the position of the stars. Many migratory species tend to return to the same breeding grounds year after year.