Here are the 12 different types of animals in the animal kingdom:

Types of Animals

Birds

Birds are a collection of warm-blooded vertebrates within the class Aves, identified by feathers, toothless, beaked jaws, the laying of hard-shelled eggs, a four-chambered heart, and a well-built yet lightweight skeleton system.

Birds are a group of endothermic vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Wikipedia

Reptiles

Reptiles are four-limbed (aka tetrapod) animals within the class Reptilia.

Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. Wikipedia

https://www.reptilefact.com/

Amphibians

Amphibians are cold-blooded, four-limbed vertebrates within the class Amphibia. Explore different types of amphibians, their habitats/ecosystems, diets, evolution, and characteristics here.

Amphibians are small vertebrates that need water, or a moist environment, to survive.

The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water through their very thin skin.

Amphibians also have special skin glands that produce useful proteins. Some transport water, oxygen, and carbon dioxide either into or out of the animal. Others fight bacteria or fungal infections. And at least one—in each species—is used for defense.

To warn potential predators, the most toxic amphibians are also the most brightly colored.

https://www.nationalgeographic.com/animals/amphibians/

Fishes

Fishes are the aquatic animals within the class Anatidae that do not have limbs with digits.

Fishes are the largest and most diverse group of vertebrate animals, with more than 34,630 valid described species (Eschmeyer & Fong 2017). This is many, many more species than the combined total of all other vertebrates (amphibians, reptiles, birds and mammals). 

Under the term "fishes" we include the primitive jawless hagfishes and lampreys, sharks, rays and chimaeras, and the many and diverse groups of bony fishes.

White (1790) described the first Australian fishes that were actually collected in Australia. Although some wide-ranging species with distributions that include Australia had already been described, White's eight species came from Botany Bay, rather than from elsewhere. Our diverse and often unique fish fauna now numbers more than 5000 species, and we're still counting.

https://fishesofaustralia.net.au/home/content/166

Insects

Insects are the largest group of six-limbed (aka hexapod) invertebrates within the class Insecta.

Nearly all insects hatch from eggs. Insect growth is constrained by the inelastic exoskeleton and development involves a series of molts. The immature stages often differ from the adults in structure, habit and habitat, and can include a passive pupal stage in those groups that undergo four-stage metamorphosis. Insects that undergo three-stage metamorphosis lack a pupal stage and adults develop through a series of nymphal stages.

https://en.wikipedia.org/wiki/Insect

Crustaceans

Crustaceans are a large, diverse group of arthropods (i.e., segmented body with jointed-limbs) within the class Crustacea.

Most crustaceans are free-living aquatic animals, but some are terrestrial (e.g. woodlice), some are parasitic (e.g. Rhizocephala, fish lice,tongue worms) and some are sessile (e.g. barnacles). The group has an extensive fossil record, reaching back to the Cambrian, and includes living fossils such as Triops cancriformis, which has existed apparently unchanged since the Triassic period. More than 7.9 million tons of crustaceans per year are produced by fishery or farming for human consumption, the majority of it being shrimp and prawns. Krilland copepods are not as widely fished, but may be the animals with the greatest biomass on the planet, and form a vital part of the food chain. 

https://en.wikipedia.org/wiki/Crustacean

Arachnids

Arachnids are another joint-legged (8-legs) invertebrate animals (arthropods) within the class Arachnida.

Almost all adult arachnids have eight legs, although the front pair of legs in some species has converted to a sensory function, while in other species, different appendages can grow large enough to take on the appearance of extra pairs of legs. The term is derived from Greek from the myth of the hubristic human weaver Arachnewho was turned into a spider.

https://en.wikipedia.org/wiki/Arachnid

Echiniderms

Echinoderms are marine animals classified under the class Echinodermata. All echinoderms in adult form contain radial symmetry (e.g., sea stars).

The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. Geologically, the value of echinoderms is in their ossifiedskeletons, which are major contributors to many limestone formations, and can provide valuable clues as to the geological environment. 

Worms

Worms are animals with a long cylindrical tube-like body with no limbs.

Worms may also be called helminths, particularly in medical terminology when referring to parasitic worms, especially the Nematoda(roundworms) and Cestoda (tapeworms) which reside in the intestines of their host. When an animal or human is said to "have worms", it means that it is infested with parasitic worms, typically roundworms or tapeworms. Lungworm is also a common parasitic worm found in various animal species such as fish and cats.Wikipedia

Mollusks

Mollusks are invertebrate animals within the class Mollusca in the animal kingdom. At present, about 85 thousand species of mollusks are recognized & properly classified.

Mollusca is the second-largest phylum of invertebrate animals after the arthropoda. The members are known as molluscs or mollusks. The number of fossil species is estimated between 60,000 and 100,000 additional species. Wikipedia

Sponges

Sponges are bottom-dwelling sea creatures within the class Porifera in the animal kingdom. They do not have tissues; Their body does not have symmetry like humans.

Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the common ancestor of all animals, making them the sister group of all other animals.

https://en.wikipedia.org/wiki/Sponge

Apes

a shrewdness

Badgers

a cete

Bats

a colony or a camp

Bears

a sloth or a sleuth

Bees

a swarm

Buffalo

a gang or obstinacy

Camels

a caravan

Cats

a clowder or a glaring;

Kittens

a litter or a kindle;

Wild cats

a destruction

Cobras

a quiver

Crocodiles

a bask

Crows

a murder

Dogs

a pack;

Puppies

a litter

Donkeys

a drove

Eagles

a convocation

Elephants

a parade

Elk

a gang or a herd

Falcons

a cast

Ferrets

a business

Fish

a school

Flamingos

a stand

Fox

a skulk or leash

Frogs

an army

Geese

a gaggle

Giraffes

a tower

Gorillas

a band

Hippopotami

a bloat

Hyenas

a cackle

Jaguars

a shadow

Jellyfish

a smack

Kangaroos

a troop or a mob

Lemurs

a conspiracy

Leopards

a leap

Lions

a pride

Moles

a labor

Monkeys

a barrel or a troop

Mules

a pack

Otters

a family

Oxen

a team or a yoke

Owls

a parliament

Parrots

a pandemonium

Pigs

a drift or drove (younger pigs) or a sounder or a team (older pigs)

Porcupines

a prickle

Rabbits

a herd

Rats

a colony

Ravens

an unkindness

Rhinoceroses

a crash

Shark

a shiver

Skunk

a stench

Snakes

a nest

Squirrels

a dray or a scurry

Stingrays

a fever

Swans

a bevy or a game (if in flight a wedge)

Tigers

an ambush or a streak

Toads

a knot

Turkeys

a gang or a rafter

Turtles

a bale or a nest

Weasels

a colony, a gang or a pack

Whales

a pod, a school, or a gam

Wolves

a pack

Zebras

a zeal