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Animals!

Discover cute, wild, and weird animals using the search bar below, or scroll to see popular animal lists!

See them all!

Search for Any Animal – Discover Amazing Creatures!

A-Z Animals is the world’s most trusted online animal encyclopedia. If you want cute animals, wild animals, weird animals or are looking for comprehensive pet guides for dogs and cats, we’ve got you covered!

We believe that if people know more about the world’s creatures they will better care for them. Thats why we add new animals for you to discover – each and every day! Learn about any animal using the search box below:



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Mammals around the world!

Mammals

The official mammal class is Mammalia. Animals that are considered mammals include warm-blooded vertebrates that have hair or fur and whose babies drink milk. Unlike other animal types like birds and insects, all mammal babies drink milk that comes from their mother’s bodies. This is one of the key ways to know if an animal is a mammal.

See the complete list of mammals.

Close up of a colorful lizard

Reptiles

Lizards, dinosaurs, crocodiles, turtles, and snakes – all belong to that ancient and stout class of animals known as the reptiles. This is a diverse group with more than 10,000 different species and a huge representation in the fossil record. Once the dominant land vertebrates on the planet, reptiles still occupy just about every single ecosystem outside of the extreme north and south.

See the complete list of reptiles.

Beta fighting fish

Fish

Fish are aquatic vertebrates. They usually have gills, paired fins, a long body covered with scales, and tend to be cold-blooded. "Fish" is a term used to refer to lampreys, sharks, coelacanths and ray-finned fishes, but is not a taxonomic group, which is a clade or group containing a common ancestor and all its descendants.

See the complete list of fish.

Colorful birds

Birds

Birds, members of the class Aves, include more than 10,400 living species. Their feathers distinguish them from all other classes of animal; no other animals on earth have them. If you see an animal with feathers, it’s undoubtedly a bird. Like mammals, birds are warm-blooded vertebrates with four-chambered hearts. However, they are more closely related to reptiles and are believed to have evolved from dinosaurs.

See the complete list of birds.

Golden eyed leaf frog

Amphibians

The official class of amphibians is Amphibia. To have the classification of an amphibian, an animal must be a vertebrate, require water to survive, be cold-blooded, and spend time both on land and in water. Though other animals only live on land or in the water, amphibians have the unique ability to thrive equally in both. Amphibians cover over 6,000 different species across the globe, but about 90% are frogs.

See the complete list of amphibians.

Queen butterfly danaus gilippus on blue hydrangea flowers.

Invertebrates

The definition of an invertebrate is any animal that does not have a backbone or vertebral column. The most prolific and easily recognizable members of the invertebrate family are insects. It’s estimated that upwards of 30 million individual species of invertebrates may exist accounting for between 90-95 percent of all organisms on the planet.

See the complete list of invertebrates.

Queen butterfly danaus gilippus on blue hydrangea flowers.

Insects

All insects are part of the taxonomical phylum Arthropoda, and they are collectively referred to as arthropods. It is common to see this name misspelled as “anthropod,” but this is not the correct term. They can be found in nearly every environment on the planet, and they currently account for over half of all known living organisms in the world. They have undergone many cycles of evolution depending on the resources available to them.

See the complete list of insects.

Pet Guides: Everything To Know About Cat and Dog Breeds

Want to know how to raise a puppy or kitten? Curious to learn more about big and small dog breeds or cat breeds? Check out our comprehensive pets guides below!

A Irish Setter
Irish Setter

Can live for up to 16 years!

A Boston Terrier
Boston Terrier

Friendly, lovable and very strong!

A Golden Retriever
Golden Retriever

Trusting, kind and gentle!

See a complete list of dog breeds.

A Abyssinian
Abyssinian

The oldest breed of cat in the world!

A Australian Mist
Australian Mist

First bred in the 1700s!

A Ragdoll
Ragdoll

One of the larger breeds of domestic cat!

See a complete list of cat breeds.

Expert Pet Product Reviews

The AZ Animals team has spent years working with and studying the latest research on what products are best for our pets and yours, and we’re excited to share our expert pet product recommendations with you.

See all of our Expert Pet Product Reviews.

Explore Animals from Around the World

Animals By Letter: Explore A to Z Animal Lists

A Aurochs
Animals that Start with A

Example: The Aurochs

A Border Terrier
Animals that Start with B

Example: The Border Terrier

A Camel
Animals that Start with C

Example: The Camel

A Dogue De Bordeaux
Animals that Start with D

Example: The Dogue De Bordeaux

A Elephant
Animals that Start with E

Example: The Elephant

A Fangtooth
Animals that Start with F

Example: The Fangtooth

A Gharial
Animals that Start with G

Example: The Gharial

A Havanese
Animals that Start with H

Example: The Havanese

A Irish Setter
Animals that Start with I

Example: The Irish Setter

A Japanese Squirrel
Animals that Start with J

Example: The Japanese Squirrel

A King Penguin
Animals that Start with K

Example: The King Penguin

A Lungfish
Animals that Start with L

Example: The Lungfish

A Mexican Free-Tailed Bat
Animals that Start with M

Example: The Mexican Free-Tailed Bat

A Newfoundland
Animals that Start with N

Example: The Newfoundland

A Olm
Animals that Start with O

Example: The Olm

A Peacock
Animals that Start with P

Example: The Peacock

A Quoll
Animals that Start with Q

Example: The Quoll

A Rose-breasted Grosbeak
Animals that Start with R

Example: The Rose-breasted Grosbeak

A Samoyed
Animals that Start with S

Example: The Samoyed

A Tiger Moth
Animals that Start with T

Example: The Tiger Moth

A Utonagan
Animals that Start with U

Example: The Utonagan

A Vaquita
Animals that Start with V

Example: The Vaquita

A Wild Boar
Animals that Start with W

Example: The Wild Boar

A X-Ray Tetra
Animals that Start with X

Example: The X-Ray Tetra

A Yorkie Bichon
Animals that Start with Y

Example: The Yorkie Bichon

A Zebu
Animals that Start with Z

Example: The Zebu

See Endangered Animals Lists

Animal Reference Guides

We are building the world’s greatest animal encyclopedia. Be search to check out our Reference Library and Glossary to learn about Animal HabitatsDietBehavior and much more…

Animals – Facts, Pictures and Resources FAQs (Frequently Asked Questions) 

What are the 6 types of animals?

The 6 types of animals are mammals, fish, amphibians, reptiles, birds and invertebrates. Additionally, animals are classified in many different ways, which you may learn about in this complete guide to animal classification.

What are the 10 most popular animals?

The 10 most popular animals on AZ Animals are:

  1. Lion
  2. Panther
  3. Amur Leopard
  4. Polar Bear
  5. White Tiger
  6. Wolf
  7. Millipede
  8. Arctic Fox
  9. Marble Fox
  10. Rhinoceros 

How many animals are there?

There are over 1 million known animal species and more than 98% of those are insects, which are indeed animals.

It must be said that few terrestrial animals don’t eat insects. Wolves have been known to eat insects at need, and humans make surprisingly tasty meals of crickets, locusts, and the enormous grubs of Hercules beetles. They don’t even need to be terrestrial, for the archerfish uses a well-aimed stream of water to knock an […] Read More


Have you herd? Groups of various animals often have unique and sometimes funny names. You’re probably familiar with common farm and backyard animals – flocks of birds and herds of cows or sheep. These terms often encompass the animals listed below. But there are so many more names of animal groups to discover! Why are […] Read More


Hawks and falcons are both birds of prey. However, you may have likely heard people using the terms interchangeably. The reality is that they are two different species of birds. Hawks are adaptable but prefer living in the open spaces of North America, Central America, Jamaica, and the West Indies. Falcons live in several countries […] Read More


How many times have you considered adopting a Labrador, only to remain perplexed about which one is the right one for you? Even though this animal is generally categorized as only one breed, the English Lab and the American Lab differentiate in many ways. They both come from the same ancestors, but the breeding that […] Read More


When most people think of ferocious predators, lizards like the Komodo dragon might come to mind with their fearsome jaws and huge build. However, despite being consistently aggressive during hunting, the praying mantis may not even get a second thought. Interestingly, these two animals battle each other more often than you might think, and each […] Read More


When you think of flying animals, the first things that come to mind are birds. Birds are some of the closest relatives to dinosaurs, and they pretty much own the skies except for insects. However, there are plenty of animals that fly that aren’t birds as well. In this article, we’ll discuss nine of the […] Read More


For a lot of people, a blue bird can be a lot of birds. Depending on where they live and what they see, it can be a jay bird, or a bluebird, an indigo bunting, a giant pitta, a blue whistling thrush, or a blue grosbeak. This blog concerns two of the most popular blue […] Read More


Have you ever wondered if there are animals that reproduce asexually? Sexual reproduction is by far the most common method of procreation in the animal kingdom. It’s been estimated that around 99% of all multi-cellular organisms engage in some form of sex. The ability to recombine DNA from two entirely different genomes is so common […] Read More


It’s said the eyes are the windows to the soul. But when we say that are we including animals? As our list of the animals with the biggest eyes in the world shows, perhaps we should include creatures in the wild as well. Housepets like dogs and cats have amazing ways of letting us know […] Read More


You’ve all heard of the massive sharks of the world and oceans past. The megalodon, the great white shark, and the whale shark get most of the attention, but did you know that there are a shocking number of shark species that can all fit in the palm of your hand? The challenge in ranking […] Read More