Frösche, or frogs, are amphibians belonging to the order Anura. They are characterized by their smooth, moist skin, long hind legs for jumping, and a wide mouth. Frogs are found in various habitats, including ponds, lakes, and forests, and they play a crucial role in ecosystems as both predators and prey. Frogs undergo a life cycle that includes stages such as egg, tadpole, and adult frog. They are known for their vocalizations, especially during mating season, when males call to attract females. Frogs are sensitive to environmental changes, making them important indicators of ecosystem health.