© 2025 RAWR SZN
Warm-blooded vertebrates that nurse their young with milk and typically give birth to live offspring. All mammals have hair or fur at some stage of life and breathe air through lungs.
Warm-blooded vertebrates characterized by feathers, beaks, and hard-shelled eggs. All birds have wings, though not all are capable of flight.
Cold-blooded vertebrates with scales or scutes, most of which lay eggs. This group includes both terrestrial and aquatic species that rely on external heat sources to regulate body temperature.
Cold-blooded vertebrates that typically begin life in water before undergoing metamorphosis into air-breathing adults. They rely on moist environments for skin respiration and reproduction.
Aquatic vertebrates that use gills to extract oxygen from water. Most species have scales and fins, and they reproduce either by laying eggs or through live birth, depending on the species.
Animals without backbones, including a wide range of species with diverse body structures. This group makes up the vast majority of animal life on Earth and includes both terrestrial and aquatic organisms.
© 2025 RAWR SZN