How are kingdoms divided?

InvertebratesAnimals

without a Backbone

or Spinal Column:

VertebratesAnimals

with a Backbone

or Spinal Column:

(All these animals are in the phyla Chordata and the subphyla Vertebrata.)

Protozoa

(phyla: protozoa)

Fish

(group: Pisces)

Echinoderms

such as starfish

(phyla: Echinodermata)

Amphibians

such as frogs

(class: Amphibia)

Annelids

such as earthworms

(phyla: Annelida)

Reptiles

such as crocodiles

(class: Reptilia)

Mollusks

such as octopus

(phyla: Mollusca)

Birds

(class: Aves)

Arthropods

such as crabs, Spiders and insects

(phyla: Arthropoda)

Mammals

(class: Mammalia)

Crustaceans

such as crabs

(subphyla: Crustacea)

Marsupials

such as kangaroos

(order: Marsupialia)

Arachnids

such as spiders

(subphyla: Chelicerata

class: Arachnida)

Primates

such as gorillas and chimpanzees

(order: Primates)

Insects

(subphyla: Uniramia

class: Insecta)

Rodents

such as mice

(order: Rodentia)

Cetaceans

such as whales and dolphins

( order: Cetacea)

Animals such as seals

(order: Carnivora

family: Phocidae)