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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!

Alligator Infested Lake in Alabama

The southern United States might not be home to king cobras, polar bears, or koalas, but it is home to the famous American alligator. Alligators are one of the most popular tourist attractions in Alabama, you can even visit a place called Gator Alley in this southern state. But, if you’re looking to take a […] Read More


Ticks in Nevada

If you live on Earth, you’re probably going to encounter a tick at some point in your life. Thanks to human exploration, not even the coldest reaches of Antarctica are safe from these tiny menaces. The same is true of ticks in Nevada. Nevada may not have the most ticks out of any state, but […] Read More


Cane Spiders in Hawaii: How Big are They?

If you struggle with arachnophobia, coming across a cane spider in Hawaii might turn your tropical vacation into a nightmare. However, despite their large size, extraordinary hunting skills, and speed, these spiders are not nearly as terrifying as you might think. Cane spiders are the largest spiders found on the Hawaiian Islands, but just how […] Read More

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 Amazon Parrot
Animals that Start with A

Example: The Amazon Parrot

A Brazilian Terrier
Animals that Start with B

Example: The Brazilian Terrier

A Catalan Sheepdog
Animals that Start with C

Example: The Catalan Sheepdog

A Draco Volans Lizard
Animals that Start with D

Example: The Draco Volans Lizard

A Eyelash Viper
Animals that Start with E

Example: The Eyelash Viper

A Flounder
Animals that Start with F

Example: The Flounder

A Golden Pyrenees
Animals that Start with G

Example: The Golden Pyrenees

A Haddock
Animals that Start with H

Example: The Haddock

A Ibex
Animals that Start with I

Example: The Ibex

A Japanese Beetle
Animals that Start with J

Example: The Japanese Beetle

A Kuvasz
Animals that Start with K

Example: The Kuvasz

A Lion
Animals that Start with L

Example: The Lion

A Mandrill
Animals that Start with M

Example: The Mandrill

A Nubian Goat
Animals that Start with N

Example: The Nubian Goat

A Ostrich
Animals that Start with O

Example: The Ostrich

A Puss Moth
Animals that Start with P

Example: The Puss Moth

A Quoll
Animals that Start with Q

Example: The Quoll

A Ragdoll
Animals that Start with R

Example: The Ragdoll

A Smooth Fox Terrier
Animals that Start with S

Example: The Smooth Fox Terrier

A Treeing Walker Coonhound
Animals that Start with T

Example: The Treeing Walker Coonhound

A Uakari
Animals that Start with U

Example: The Uakari

A Vicuña
Animals that Start with V

Example: The Vicuña

A Western Blind Snake
Animals that Start with W

Example: The Western Blind Snake

A Xerus
Animals that Start with X

Example: The Xerus

A Yellow Sac Spider
Animals that Start with Y

Example: The Yellow Sac Spider

A Zebra Finch
Animals that Start with Z

Example: The Zebra Finch

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

Ticks in Nebraska

Ticks in Nebraska are eight-legged arachnids that live solely on blood. They can take the blood of almost any host, humans included. These tiny, blood-sucking parasites survive on every continent, even Antarctica. A single tick can transmit any number of diseases, illnesses, and pathogens, including Lyme disease and Rocky Mountain spotted fever. Tick bites can […] Read More


What to Do if You Find a Lost Cat

If you go out to get your mail and find a cat wandering around, what should you do? If it’s familiar you might know just what to do, but if you don’t recognize the cat it might not be so simple. You might wonder if it’s safe to pick up a stray cat and whether […] Read More


How to Attract Owls: 10 Easy Steps

Some people may be disturbed by midnight hooting, while others welcome the sounds, knowing that their rodent problem is being taken care of. Owls can be a helpful backyard resident by hunting a variety of nuisance animals like mice, voles, insects and other garden pests. They can also be amazing creatures for bird watching and […] Read More

Do Owls Eat Snakes?

Some animals have a very specific diet, like Koala bears that eat mostly eucalyptus leaves and did you know that the giant leatherback sea turtle eats mostly jellyfish? Owls are not picky at all and have one of the most varied diets. They will eat mammals, birds, amphibians and reptiles (including snakes)! Do all owls […] Read More


Do Owls Poop! Everything You’ve Always Wanted to Know!

Perhaps you’ve come out to your car after a quick errand to find a messy splat of pigeon poo on your window. Usually a quick stop at the local gas station or car wash will get that cleaned up. But what if a 2 foot tall, 3 pound great horned owl flew over your car, […] Read More


Hawk Mating Season: When Do They Breed?

Native to North America and widespread throughout the continent, hawks are sharp-eyed birds of prey with a distinctive scream. That iconic call of the bald eagle in movies is actually the screech of a red-tailed hawk, used in cinema for its dramatic effect. Hawks engage in a fascinating courtship display involving soaring flight that leads […] Read More

Which Bears Have The Biggest Claws? The Surprising Ranking

Bears are some of the most amazing creatures in the world. They have so many characteristics that make them lovable and attractive animals. Revealed to be one of the most intelligent land creatures, bears display a relatively high intelligence comparable to that of higher primates.  With its many mighty and outstanding attributes, a lot can […] Read More


Why Do Sloth Bears Have Such Gigantic Claws? 

Bears have a bad reputation for being bloodthirsty and vicious animals. Whenever you hear of them in the news, it’s probably because of an attack. However, bear attacks are rare – on average, black bears of North America kill less than one person per year. Again, bears try to avoid humans and typically attack only […] Read More


12 Black Snakes in Arkansas

Snakes are among the most feared animals in America despite most snakes posing no threat. Due to this fear, many black snakes in Arkansas are killed needlessly. Be careful if you’re thinking about killing a snake you’ve encountered, as many are protected by law. Almost all snakes in Arkansas are protected unless you’re in immediate […] Read More

This Taloned Giant Is ‘Nature’s Greatest Killing Machine’

Efficiency is much better than strength when it comes to survival in the animal kingdom. However, the most fearsome creatures of them are the ones who have learned to combine the best of both qualities. These are nature’s greatest killing machines! They are thee predators that rank top of the food chain – the hunters […] Read More


Top 20 Tri-colored Dogs

Some dogs have a distinct pattern, like the Dalmatian, which has white with black spots. Others are all white, like the Maltese. Some dogs are tri-colored, meaning they have fur that is three colors; black, brown/rust, and white. Often, the colors are in specific areas, like the Saint Bernard, which has a rust-colored back, white […] Read More


Bernese Mountain Dog vs Bernedoodle: What’s the Difference?

You may not be able to guess all of the differences between the Bernese mountain dog vs bernedoodle, but you likely have a good idea as to their similarities. The bernedoodle is a cross between a Bernese mountain dog and a poodle, which makes them very similar breeds in some ways, but not in others.  […] Read More

How to Give a Puppy as a Present

You can already picture the look on your daughters face when she opens the box to be greeted by a squirmy Goldendoodle puppy. Maybe your Grandma is ready for a furry companion and you know she would love a little Yorkie to keep her company. Giving a puppy as a present can be an exciting […] Read More


Aussiedoodle vs Bernedoodle: What’s the Difference?

Did you know that there are a number of poodle cross breed dogs out there in the world today, including the Aussiedoodle vs bernedoodle? What do these two dog breeds have in common, and what traits separate them from one another to create two distinct breeds of dog? If you have always wanted to know […] Read More


Sheepadoodle vs Goldendoodle: What’s the Difference?

With so many different poodle crossbreed dogs out there in the world, you may be wondering what all of the differences and similarities are between the goldendoodle and the sheepadoodle. What might bring these two dogs together, and what separates them into two distinct dog breeds? In this article, we will compare and contrast everything […] Read More

Giving Your Dog Melatonin: Risks, Side Effects, Dosage, and More

Many pet parents worry about the stress and anxiety that their dogs experience during certain situations. Giving melatonin can relieve these symptoms and improve your dog’s general mood. Of course, you need to talk to your vet about it first. What does giving melatonin to your dog entail? Let us review these questions and understand […] Read More


Scorpionfish vs Lionfish: What Are The Differences?

Walking barefoot in the ocean is something that most people dream of, but what if there was danger lurking just beneath the surface? The scorpionfish and the lionfish are two of the most deadly fish on the planet, capable of injecting venom into their prey in an instant. While both of these creatures are incredibly […] Read More


Lake Powell Water Crisis Explained: The 7 States Most Threatened

Lake Powell is located in Northern Arizona and Utah. It was created by the Glen Canyon Dam on the Colorado River, and it is the second-largest reservoir in the United States. Its resources service millions in seven states, but there is a crisis occurring in these most threatened states, and it needs to be explained. […] Read More

Velociraptor vs Protoceratops: Who Would Win in a Fight?

Dinosaurs varied a great deal in terms of their size and strength throughout their long reign. Scientists can even track the evolution of some dinosaurs over time based on their fossil records. For example, they know that the Protoceratops is an ancestor of the horned triceratops. Protoceratops lacked horns, making them a fairer match for […] Read More


Which Animals Have The Largest Claws On Earth?

When people think about animals with enormous claws, their minds most times drift to the wild cat family only. Could this be true?  The truth is that there are select animals in the world that get people’s attention, however, their giant claws set them apart from the rest. Let’s take a look at the animals […] Read More