Discover, Appreciate, & Understand the Animal World!

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See All Animals A-Z!

We believe that if people know more about the world’s creatures they will better care for them. That’s 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. Also, be sure to check out our growing list of Animal Quizzes.

Discover Your Favorite Animal Today!

Latest from A-Z Animals

When Is Cockroach Season in Tennessee?

Cockroaches are not the most popular house guests! Most people would prefer it if they did not have to share their home with these creepy crawlies and that includes the… Read More

By Sharon Parry 8 hours ago


Vetprofen Dosage Chart for Dogs: Risks, Side Effects, Dosage, and More

It can be incredibly stressful for both animals and owners when a pet falls ill. Thankfully, veterinary science has come incredibly far throughout the years, and animals are now living… Read More

By Alanna Davis 10 hours ago


Massive Moose Gets Stuck in Ice Until Rescuers Arrive

Magnificent moose can normally be seen roaming the forests of Canada, Alaska, and the northeastern United States (as well as northern Europe and Russia). Huge yet graceful, they can also… Read More

By Sharon Parry 12 hours ago

The 11 Most Expensive Meats You Can Eat

There are plenty of expensive foods in the world like black watermelon, coffee, melons, and mushrooms. While these delicacies are worth trying, the most expensive meats are in a class… Read More

By Nina Phillips 15 hours ago


How to Use Epsom Salt on Palm Trees + 7 Benefits

A palm tree kept inside your home gifts you with an upgrade in oxygen levels and air quality. Outside, they serve as striking natural decor that also contribute to oxygen… Read More

By Angie Menjivar 15 hours ago


The Largest Columbia Blacktail Deer Ever Caught in Oregon

Technically a subspecies of black-tailed deer classified as Odocoileus hemionus columbianus, Columbia blacktail deer are only found on the western coast of the United States and Canada. This includes the… Read More

By August Croft 18 hours ago

Dog Grooming Prices in 2024: How Much You Should Expect to Pay

There is some basic grooming you can do at home with your dog. But sometimes, you need the helping hand of a pro. Whether it's once every couple of months… Read More

By Angie Menjivar 19 hours ago


The Top 11 Countries That Have the Most Islands in the World

Ever wish you were living on an island? You would be able to enjoy the amazing weather, frolic in the water, and just live a life of luxury. Not many… Read More

By Patrick MacFarland 1 day ago


The Largest Carp Ever Caught in Virginia Was a Swiming Hulk

To some people, fishing is a casual pastime, but for others, this sport is a full-blown passion. The state of Virginia is home to quite a large community of serious… Read More

By Alanna Davis 2 days ago

The 7 Main Types of Animals And Their Characteristics

There are many different types of animals in the world, but some of the largest categories include:

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.

Explore Types of Wild Animals from Around the World

We track thousands of animals from every continent and corner on earth, and are adding more every day!

  • African Animals – Africa is home to some of the most incredible and dangerous animals in the world.
  • Asian Animals – Asia has the world’s longest coastline, and an amazing diversity of exotic animals, birds, and more.
  • Central American Animals – Discover the the nearly 400 different animals we track in Central America today.
  • Eurasian Animals – Eurasia has some of the rarest animals in the world, like Siberian Tigers and Snow Leopards.
  • European Animals – We track over 500 different animals in Europe, including wolves and bears.
  • North American Animals – North America has many beautiful national parks that house some of the rarest animals on earth.
  • Marine (Ocean) Animals – The ocean is teaming with life, from the smallest shrimp to the largest animal ever – the Blue Whale!
  • Oceanian Animals – Oceania has many islands, and the world’s highest concentration of marsupials.
  • South American Animals – Home to the stealthy Jaguar, the friendly Capybara, and many more!

See Endangered and Extinct Animals Lists

A-Z Animals follow’s the IUCN Red List of Threatened Species definitions of threatened and endangered animals. Please consult the lists below to learn more about which animals need our help the most

  • Extinct – Species that no longer exist on earth
  • Extinct in the Wild – Species that are only known to survive in captive or cultivated environments
  • Critically Endangered – Animals that face an extremely high risk of extinction in the wild
  • Endangered – Animal species that face a high risk of extinction in the wild
  • Vulnerable – Animal species that face a risk of extinction in the wild
  • Near Threatened – Species that are facing population challenges and likely to become vulnerable to extinction soon
  • Least Concern – Animals with strong populations that are not expected to face extinction risk in the near future
  • Data Deficient – Species where we lack adequate information to assess the risk
  • Not Evaluated – Animal species that have not been evaluated yet

Types of Animals By Letter: Explore A to Z Animal Lists

See lists of animals that start with every letter of the alphabet, from A to Z. We track all types of animals like lions and tigers, dogs and cats, even dinosaurs and spiders. Choose your favorite letter below to see all animals that start with it today.

A Armenian Gampr
Animals that Start with A

Example: The Armenian Gampr

A Blackpoll Warbler
Animals that Start with B

Example: The Blackpoll Warbler

A Cactus Moth
Animals that Start with C

Example: The Cactus Moth

A Diving Duck
Animals that Start with D

Example: The Diving Duck

A Eastern Tiger Snake
Animals that Start with E

Example: The Eastern Tiger Snake

A Field Spaniel
Animals that Start with F

Example: The Field Spaniel

A Glass Frog
Animals that Start with G

Example: The Glass Frog

A Huntaway
Animals that Start with H

Example: The Huntaway

A Italian Greyhound
Animals that Start with I

Example: The Italian Greyhound

A Junglefowl
Animals that Start with J

Example: The Junglefowl

A Korean Jindo
Animals that Start with K

Example: The Korean Jindo

A LaMancha Goat
Animals that Start with L

Example: The LaMancha Goat

A Microraptor
Animals that Start with M

Example: The Microraptor

A Newfypoo
Animals that Start with N

Example: The Newfypoo

A Ornithocheirus
Animals that Start with O

Example: The Ornithocheirus

A Pachycephalosaurus
Animals that Start with P

Example: The Pachycephalosaurus

A Quahog Clam
Animals that Start with Q

Example: The Quahog Clam

A Red-Billed Quelea Bird
Animals that Start with R

Example: The Red-Billed Quelea Bird

A Sparrow
Animals that Start with S

Example: The Sparrow

A Terrier
Animals that Start with T

Example: The Terrier

A Utonagan
Animals that Start with U

Example: The Utonagan

A Vizsla
Animals that Start with V

Example: The Vizsla

A White Sturgeon 
Animals that Start with W

Example: The White Sturgeon 

A Xingu River Ray
Animals that Start with X

Example: The Xingu River Ray

A Yellowtail Snapper
Animals that Start with Y

Example: The Yellowtail Snapper

A Zebrafish (Zebra Fish)
Animals that Start with Z

Example: The Zebrafish (Zebra Fish)

Everything To Know About Pet Dogs, Cats Birds, and More

Some of the most popular types of animals on earth are pets. A pet is a domesticated animal that lives with a person or family, usually in a house. The most common pets include dogs, cats, fish, and birds, but there are also many amazing exotic pets like reptiles, lizards, and more! Horses, goats, and pigs can also be pets too.

Pet Dogs

Dogs are the most popular type of pet on earth with nearly 500 million worldwide. Thats almost one dog for every 15 people on earth! There are hundreds of different dog breeds. The Irish Wolfhound is the largest dog breed, and was bred to hunt wolves. Chihuahuas are the smallest, and were likely bred for companionship or to hunt small rodents. The most popular dog breeds are below.

A Irish Setter
Irish Setter

Has a beautiful coat that's flowing and feathered!

A Boston Terrier
Boston Terrier

Friendly, lovable and very strong!

A Golden Retriever
Golden Retriever

Trusting, kind and gentle!

Pet Cats

Cats are the second most popular pet on earth with nearly 400 million worldwide. Thats almost one pet cat for every 20 people on earth! You can read about the hundreds of different cat breeds, from the large to the small. The most popular cat breeds are below

A Abyssinian
Abyssinian

One of the oldest cat breeds in the world!

A Australian Mist
Australian Mist

The only cat breed to originate in Australia.

A Ragdoll
Ragdoll

One of the larger breeds of domestic cat!

Pet Product Reviews

Pets are important members of our families and should be cared for. The AZ Animals team reviews the latest research on pet health, consults veterinarian best practices, and works directly with vet health specialists to review the best products for your dog, cat, and other pets. We’re excited to share our expert pet product recommendations with you, including the best dog food, best cat food, and best tanks for your pet fish

More Animal News, Facts, Rankings, and More!

Does Baking Soda Kill Fire Ants? 4 Important Things to Know Before Using It

Do you suspect that you have a fire ant infestation? This is not a single species of ant but a term that describes several ants that can cause serious problems.… Read More

By Sharon Parry 2 days ago


Treeing Walker Coonhound Lifespan: Average Life Expectancy and More!

An all-American breed, the treeing Walker coonhound originated in the United States during the 1700s to 1800s. This tenacious breed is courageous, loyal, and works tirelessly with energy to spare.… Read More

By Kellianne Matthews 2 days ago


Essential Dignities: What Does it Mean if a Planet is in Domicile in Astrology?

In Western astrology, there are four qualities of planets called "essential dignities." These qualities refer to the strength or weakness of a planet in a certain sign. The four essential… Read More

By Dayva Segal 2 days ago

Discover the Best Time of Year to Plant Wildflower Seeds

You've all seen them when you're hiking valleys or out in nature. There are beautiful wildflowers that are just amazing to look at. They could be of different colors, from… Read More

By Patrick MacFarland 2 days ago


The Top 5 Best Grass Types that Thrive in Arizona

Are you thinking about giving your lawn a new look? If so, you might be researching the different grass types and the benefits that they offer. Individuals who live in… Read More

By Alanna Davis 3 days ago


The 10 Fastest Trains in Europe

Trains are an invention of the Industrial Revolution. From the beginning, trains served the purpose of shipping goods from one place to another and ensuring travel for people from one… Read More

By Patrick MacFarland 3 days ago

The 8 Most Beautiful Places to Live In Ontario That Are Still Affordable

The world is getting expensive. Way back when you could afford a mortgage on a decent job. Nowadays, you need a very good job that pays extremely well to get… Read More

By Patrick MacFarland 3 days ago


10 Human Foods You Should Never Feed to Betta Fish

Are you the proud owner of an adorable little betta fish? If so, you might have questions about how you can spice up their diet. While many betta fish get… Read More

By Alanna Davis 3 days ago


Dog Cataract Surgery Cost in 2024: Typical Expense and 5 Ways to Save

Both dogs and people can suffer from vision problems, such as cataracts, especially as we age. Fortunately, your dog's cataracts can be treated successfully with surgery. Read on to find out why your… Read More

By Jennifer Geer 3 days ago

Wolves in Pennsylvania: Do They Still Roam The Keystone State?

Wolves are incredible, intelligent animals that live together in tight-knit families. They care for both their young as well as their elderly, working together to ensure the well-being of the… Read More

By Kellianne Matthews 3 days ago


The 12 Tallest Buildings in France

If there is one thing that France is known for, it's delicious food. But France is much more than just escargot and pain au chocolat. In fact, France is known… Read More

By Patrick MacFarland 3 days ago


Essential Dignities: What Does it Mean if a Planet is in Fall in Astrology?

There are four essential dignities, including a fall, in astrology that refer to the qualities of planets in certain signs. The four qualities are: Exalted Fall Domicile Detriment In modern… Read More

By Dayva Segal 3 days ago

The Largest City Park in Nevada Is a Massive 2,040 Acres

Although some people might think of Nevada as one long stretch of desert, the truth is that this state is rife with greenery. City parks are one of the most… Read More

By Alanna Davis 3 days ago


New Mexico’s Largest Landowner Controls a Ridiculous 24,665,774 Acres

When most people think of large landowners, they automatically picture private landowners. Sometimes they are even wearing large cowboy hats, or even finely pressed suits. The largest landowner in New… Read More

By Nixza Gonzalez 4 days ago


The 13 Best Flowering Trees for Arkansas Yards

After the cold winter temperatures begin to subside, a variety of flowers begin blooming throughout the state of Arkansas. While some gardeners like to plant bulbs that come back each… Read More

By Alanna Davis 4 days ago

Betta Fish Eggs: Hatching Time, Appearance, and How Many Babies to Expect

Did you know that the betta fish was domesticated over 1,000 years ago? Known as Siamese fighting fish (Betta splendens) in the wild, these fun fish originally come from Southeast… Read More

By Kellianne Matthews 4 days ago


The 15 Oldest Street Markets in the World

Street markets, we’ve all seen them on our travels, and they are the coolest thing. Walking down the streets of a street market, you usually see an abundance of things… Read More

By Patrick MacFarland 4 days ago


Grizzly Bears in Washington: Where They Live, Risk to Humans, and Diet

Grizzly bears can be terrifying. For most of us, it's hard, and a little nerve-wracking, to try and imagine encountering a grizzly bear. In North America, there are about 50,000… Read More

By Nixza Gonzalez 4 days ago

The Top 15 Dog Breeds That are the Easiest to Train

You don't have to be an expert to train a dog but you do need patience and determination. Dog owners (especially the inexperienced ones) can get overwhelmed and sadly this… Read More

By Sharon Parry 4 days ago


11 Types of Schefflera and How They Are Different

When it comes to nature, there are many species of a type of plant or animal.  For example, there are various species of tigers. In terms of flora, there is… Read More

By Patrick MacFarland 4 days ago


See all of A-Z Animals News and Information.

Animal Reference Guides And Educational Resources

We believe if people are more educated about the world’s animals, they will better car for them. That’s why we are building the world’s greatest animal encyclopedia, completely free to you. Please take a moment to learn more about animals today using these helpful guides and resources:

  • Reference Library – See helpful information on conservation, classification, animal evolution, and more
  • Glossary – A list of scientific and technical animal terms, with definitions
  • Animal Habitats – Learn all about different animal habitats
  • Diet – The different animal diets like omnivores, herbivores, and carnivores defined with examples
  • Behavior – Learn all about animal intelligence, communication, community, language, migration, and more.

Animal Encyclopedia With Facts, Pictures, Definitions, and More! 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.