Vertebrate Animals (4th grade) Match the types of vertebrate with their traits. Tools A B Mammal Warm-blooded animal with fur which feeds milk to its young. Fish Cold-blooded animal with scales and gills which lives in the water. Amphibian Cold-blooded animal with gills and later lungs. Bird Warm-blooded animal with feathers which lays eggs. Reptile Cold-blooded animal with dry scaly skin and lungs. Marsupial Mammal with a pouch. Monotreme Mammal which lays eggs. Placental Mammal which bears live young. Salamanders and Newts Amphibians with tails. Frogs and Toads Amphibians without tails. Turtles and Tortoises Reptiles with shells. Crocodiles and Alligators Crocodilians Fish, Amphibians, and Reptiles The groups of cold-blooded vertebrates. Birds and Mammals The groups of warm-blooded vertebrates. Reptiles and Fish. The groups of vertebrates with scales. Fish, Amphibians, Reptiles, and Birds. Vertebrate groups which lay eggs. Jawless Fish The earliest group of fish. Lobe-finned fish Fish which may be the ancestors of amphibians. Caecilians Amphibians which look like worms. Primates Mammal group which includes human beings.