Birds
Invertebrates
Vertebrates
Reptiles
Mammals
Annelids
Arthropods
Taxonomy
Invertebrates with jointed legs and exoskeletons
Warm-blooded animals that give birth to live young
Vertebrates with feathers
The science of classifying living organisms
Animals without a backbone
Cold-blooded animals with scales or shells
Animals with a backbone
Invertebrates with segmented bodies and no skeleton