Katzen, or cats, are small, domesticated mammals known for their playful and independent nature. They belong to the family Felidae and are often kept as pets around the world. Cats have sharp retractable claws, keen senses, and a variety of vocalizations, including meows and purrs, which they use to communicate with humans and other animals. These animals are skilled hunters, primarily preying on small rodents and birds. Katzen are also known for their grooming habits, using their tongues to clean their fur. They come in various breeds, colors, and patterns, making them popular companions for many households.