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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
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.
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.
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.
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.
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.
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.
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!
Most Popular Pet Dog Breeds

Irish Setter
Can live for up to 16 years!

Boston Terrier
Friendly, lovable and very strong!

Golden Retriever
Trusting, kind and gentle!
See a complete list of dog breeds.
Most Popular Pet Cat Breeds

Abyssinian
The oldest breed of cat in the world!

Australian Mist
First bred in the 1700s!

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
- African Animals
- Asian Animals
- Central American Animals
- Eurasian Animals
- European Animals
- North American Animals
- Marine (Ocean) Animals
- Oceanian Animals
- South American Animals
Animals By Letter: Explore A to Z Animal Lists

Animals that Start with A
Example: The Amazon Parrot

Animals that Start with B
Example: The Brazilian Terrier

Animals that Start with C
Example: The Catalan Sheepdog

Animals that Start with D
Example: The Draco Volans Lizard

Animals that Start with E
Example: The Eyelash Viper

Animals that Start with F
Example: The Flounder

Animals that Start with G
Example: The Golden Pyrenees

Animals that Start with H
Example: The Haddock

Animals that Start with I
Example: The Ibex

Animals that Start with J
Example: The Japanese Beetle

Animals that Start with K
Example: The Kuvasz

Animals that Start with L
Example: The Lion

Animals that Start with M
Example: The Mandrill

Animals that Start with N
Example: The Nubian Goat

Animals that Start with O
Example: The Ostrich

Animals that Start with P
Example: The Puss Moth

Animals that Start with Q
Example: The Quoll

Animals that Start with R
Example: The Ragdoll

Animals that Start with S
Example: The Smooth Fox Terrier

Animals that Start with T
Example: The Treeing Walker Coonhound

Animals that Start with U
Example: The Uakari

Animals that Start with V
Example: The Vicuña

Animals that Start with W
Example: The Western Blind Snake

Animals that Start with X
Example: The Xerus

Animals that Start with Y
Example: The Yellow Sac Spider

Animals that Start with Z
Example: The Zebra Finch
See Endangered Animals Lists
- Extinct
- Extinct in the Wild
- Critically Endangered
- Endangered
- Vulnerable
- Near Threatened
- Least Concern
- Data Deficient
- Not Evaluated
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 Habitats, Diet, Behavior 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