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Discover Different Types of Animals Today

A-Z Animals is the world’s most trusted online animal encyclopedia. If you want cute animals, types of wild animals, exotic pets, weird animals or are looking for comprehensive pet guides for dogs and cats, you’ll find it here!

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 or subscribe to our YouTube Channel.

Latest Animal News, Facts, Rankings, and More!

Discover 9 Plants Invading Texas

Spanning an immense 268,596 miles, Texas is the second largest state in the United States.  It has a vast range of ecosystems which is home to many thousands of animals.… Read More

By Hannah Ward 4 hours ago


Discover the Most Dangerous (Deadliest) Animals in Arkansas

Arkansas is home to about 3 million people and covers a number of habitats. In the north of Arkansas sits hills and lakes while the south is warm enough year-round… Read More

By Cindy Rasmussen 8 hours ago


The 10 Biggest Lakes in Maryland

As one of the smallest states in the United States, Maryland has a diverse landscape, ranging from dunes to rolling mountains. It's even known as 'America in Miniature' due to… Read More

By Taiwo Victor 9 hours ago

See all of A-Z Animals News and Information.

The 7 Major Different Types Of Animals

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 Types of Wild Animals from Around the World

Animals By Letter: Explore A to Z Animal Lists

A Albatross
Animals that Start with A

Example: The Albatross

A Bonobo
Animals that Start with B

Example: The Bonobo

A Canadian Horse
Animals that Start with C

Example: The Canadian Horse

A Dormouse
Animals that Start with D

Example: The Dormouse

A European Bee-Eater
Animals that Start with E

Example: The European Bee-Eater

A Frigatebird
Animals that Start with F

Example: The Frigatebird

A Gecko
Animals that Start with G

Example: The Gecko

A Havanese
Animals that Start with H

Example: The Havanese

A Indochinese Tiger
Animals that Start with I

Example: The Indochinese Tiger

A Jackdaw
Animals that Start with J

Example: The Jackdaw

A Kinder Goat
Animals that Start with K

Example: The Kinder Goat

A Labmaraner
Animals that Start with L

Example: The Labmaraner

A Mountain Lion
Animals that Start with M

Example: The Mountain Lion

A Night Snake
Animals that Start with N

Example: The Night Snake

A Orange-Crowned Warbler
Animals that Start with O

Example: The Orange-Crowned Warbler

A Pool Frog
Animals that Start with P

Example: The Pool Frog

A Quokka
Animals that Start with Q

Example: The Quokka

A Ribbon Eel
Animals that Start with R

Example: The Ribbon Eel

A Siamese
Animals that Start with S

Example: The Siamese

A Tree Snake
Animals that Start with T

Example: The Tree Snake

A Ural owl
Animals that Start with U

Example: The Ural owl

A Vulture
Animals that Start with V

Example: The Vulture

A Woolly Monkey
Animals that Start with W

Example: The Woolly Monkey

A Xerus
Animals that Start with X

Example: The Xerus

A Yellow Cobra
Animals that Start with Y

Example: The Yellow Cobra

A Zebra
Animals that Start with Z

Example: The Zebra

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…

Even more from A-Z Animals

Meet the ‘Zombie Sharks’ That Are Found in Beaches Across Florida

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Discover 5 Animals Invading Texas

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Discover These 10 Magnificent Waterfalls in New Hampshire

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This “Terror Bird” Dinosaur Ran Faster Than Any Human

Phorusrhacos (FOE-roos-RAY-cuss), or rag bearer in Greek, is an extinct genus of giant flightless terror birds that lived in Argentina during the Miocene epoch. These birds were the top killers… Read More

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The 10 Biggest Lakes In Kentucky

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The 15 Biggest Lakes In Europe

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Ticks in New Jersey

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The 5 States With the Most Dangerous Blizzards

Did you know that some states are far more prone to dangerous blizzards than others? Blizzards can be very hazardous, and not only for humans and their pets. North American… Read More

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7 Snakes Near Dallas in North Texas

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Green Sea Turtle vs Leatherback: The Key Differences

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Discover 4 Plants Invading Florida

Plants are known to have natural enemies, whether it be insects, animals, weather, or just humans. Most plant populations stay at reasonable levels because of these enemies. Invasive plants may… Read More

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The 10 Best Waterfalls in Maui You Can’t Afford To Miss

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10 of the Most Breathtaking Waterfalls in Vermont

Vermont is one of the most popular tourist destinations in America, and with good reason. A visit to Vermont will enlighten you as to the state's natural beauty. Along with… Read More

By Volia Nikaci 15 hours ago


10 Spiders in Rhode Island

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By Patrick Sather 15 hours ago

Are there Salmon in the Great Lakes?

The Pacific Northwest states of Washington, Oregon, and Northern California have thousands of salmon that make a spectacular migration up the dam systems for spawning. But do salmon live in… Read More

By Cindy Rasmussen 15 hours ago


These are the 10 Wettest Cities in the United States

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By Cindy Rasmussen 16 hours ago


Loggerhead vs Green Sea Turtle: What Are The Differences?

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8 Strongest Snakes in the World

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