3. Reptiles such as crocodiles (class: Reptilia ) Annelids such as earthworms (phyla: Annelida ) Amphibians such as frogs (class: Amphibia ) Echinoderms such as starfish (phyla: Echinodermata ) Fish (group: Pisces ) Protozoa (phyla: protozoa) Vertebrates Animals with a Backbone or Spinal Column: (All these animals are in the phyla Chordate and the subphyla Vertebrata .) Invertebrates Animals without a Backbone or Spinal Column:
4. Primates such as gorillas and chimpanzees (order: Primates ) Arachnids such as spiders (subphyla: Chelicerata class: Arachnida ) Marsupials such as kangaroos (order: Marsupialia) Crustaceans such as crabs (subphyla: Crustacea) Mammals (class: Mammalia) Arthropods such as crabs, spiders and insects (phyla: Arthropoda) Birds (class: Aves ) Mollusks such as octopus (phyla: Mollusca )
5. Animals such as seals (order: Carnivora family: Phocidae ) Cetaceans such as whales and dolphins ( order: Cetacea ) Rodents such as mice (order: Rodentia ) Insects (subphyla: Uniramia class: Insecta)