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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 and Web Stories.

Discover Your Favorite Animal Today!

Latest from A-Z Animals

Redwood vs. Yellow Cedar Tree: 6 Differences Between These Towering Giants

Rising over the rest of the canopy, Redwood trees and Yellow Cedar trees are two of the world's largest species of tree. There’s simply no comparing any other arboreal specimen… Read More

By Samuel Christopher 2 mins ago

Discover 9 International Treasures That Are Fort Worth’s Sister Cities

Fort Worth is a vibrant and diverse city in the heart of Texas. As one of the major cities in the Dallas-Fort Worth Metroplex, Fort Worth has a rich history… Read More

By Clemence Maureen Feniou 37 mins ago

The 10 Best Senior-Friendly Hot Springs in Oregon

Oregon boasts beautiful landscapes, earning its reputation as a stunning state. This state is home to forests, mountains, rivers, and rocky beaches. Various wildlife call this state home, and it… Read More

By Stephanie Heath 51 mins ago

Discover 5 Amazing Fish Living in Lake Powell

Lake Powell is a 2,000-mile-long lake. It extends from Northern Arizona and dips into southern Utah. Lake Powell is beloved by many for its abundance of sunlight and warm weather.… Read More

By Amanda Martinotti 2 hours ago

Discover the 20 Fruits That Start With D

Delicious, delectable, and downright nutritious—fruits that start with the letter D bring a delightful twist to your taste buds while packing a powerful punch of vitamins and minerals. In this… Read More

By Em Casalena 2 hours ago

Watch the Incredibly Tense Video of a Crafty Grizzly Bear Stalking a Man in the Woods

This hike in the woods has turned into a frightening experience! A man was walking with his dog when a grizzly bear became a little too interested in them for… Read More

By Sharon Parry 2 hours ago

Discover the 5 Largest Cities in New Mexico (By Population, Total Area, and Economic Impact)

New Mexico, known for its rich cultural heritage and stunning landscapes, is home to diverse cities, each with unique characteristics. Let's explore the largest cities in New Mexico, factoring in… Read More

By Theresa Pogach 4 hours ago

How Many Alligators Live in Louisiana’s Lake Pontchartrain?

If you have ever been to the southeast of the United States, you know that you will likely encounter an American Alligator (Alligator mississippienis). Ultimately, many people talk about Florida… Read More

By Rob Hayek 4 hours ago

Everything You Need to Get Started Raising Backyard Chickens

There are many reasons why you might want to start raising backyard chickens. The price of eggs and chicken meat in general might have increased too much for you to… Read More

By Aaron Webber 5 hours 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!


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


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 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, 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


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.


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.


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 Antarctic Scale Worm
Animals that Start with A

Example: The Antarctic Scale Worm

A Barred Owl
Animals that Start with B

Example: The Barred Owl

A Caiman Lizard
Animals that Start with C

Example: The Caiman Lizard

A Dutch Shepherd
Animals that Start with D

Example: The Dutch Shepherd

A Eastern Green Mamba
Animals that Start with E

Example: The Eastern Green Mamba

A Fossa
Animals that Start with F

Example: The Fossa

A Goose
Animals that Start with G

Example: The Goose

A Hogfish
Animals that Start with H

Example: The Hogfish

A Italian Greyhound
Animals that Start with I

Example: The Italian Greyhound

A Junglefowl
Animals that Start with J

Example: The Junglefowl

A Kouprey
Animals that Start with K

Example: The Kouprey

A Leghorn Chicken
Animals that Start with L

Example: The Leghorn Chicken

A Mississippi Kite
Animals that Start with M

Example: The Mississippi Kite

A Nilgai
Animals that Start with N

Example: The Nilgai

A Ortolan Bunting
Animals that Start with O

Example: The Ortolan Bunting

A Pine Siskin
Animals that Start with P

Example: The Pine Siskin

A Queen Snake
Animals that Start with Q

Example: The Queen Snake

A Russian Blue
Animals that Start with R

Example: The Russian Blue

A Scotch Collie
Animals that Start with S

Example: The Scotch Collie

A Tibetan Terrier
Animals that Start with T

Example: The Tibetan Terrier

A Uakari
Animals that Start with U

Example: The Uakari

A Vole
Animals that Start with V

Example: The Vole

A Western Blacklegged Tick
Animals that Start with W

Example: The Western Blacklegged Tick

A Xingu River Ray
Animals that Start with X

Example: The Xingu River Ray

A Yellow Tang
Animals that Start with Y

Example: The Yellow Tang

A Zebra Pleco
Animals that Start with Z

Example: The Zebra Pleco

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

One of the oldest cat breeds in the world!

A Australian Mist
Australian Mist

The only cat breed to originate in Australia.

A 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!

Discover the Largest House in the UK and Just How Big 828,800 Square Feet Really Is 

The largest house in the UK has been the personal residence of British monarchs since 1837. The neoclassical-style Buckingham Palace, located in London, is instantly recognizable as an iconic British landmark.… Read More

By Jennifer Geer 5 hours ago

Sahara Desert Temperatures: Discover Just How Hot It Gets

The Sahara Desert, or the Sahara, is one of Earth's most iconic and extreme natural landscapes. Situated in North Africa, it is the third-largest desert in the world and the… Read More

By Clemence Maureen Feniou 6 hours ago

The Scariest Bridge in Washington Will Make You White-Knuckle the Steering Wheel

One of the most iconic bridges in Washington connects two incredible islands. But for part of the year, it creates a scene out of a horror movie. Discover the scariest… Read More

By Mandy Trotti 7 hours ago

The 5 Largest College Campuses in Missouri

Just how large are some of the largest college campuses in Missouri? Understanding the size of a college can help determine whether or not it’s a good fit. This is… Read More

By August Croft 7 hours ago

Discover 8 States that Still Have Glaciers

Glaciers are ancient heaps of ice that form from compacted snow over a very long time. They're like frozen rivers, slowly moving downhill, and are essential for our planet's balance.… Read More

By Lev Baker 7 hours ago

Fishing in Lake Arrowhead: 9 Fish You Might Catch

Situated on the western coast of Southern California, Lake Arrowhead is a natural haven just a short 40-minute drive north of San Bernardino. This serene lake is embraced by a… Read More

By Lev Baker 7 hours ago

Discover the Smallest Town in Mississippi – Everyone Could Fit In a City Bus

Mississippi is a beautiful state in the Southeastern United States. According to the United States Census Bureau, Mississippi has a population of 2,940,057, making it the 35th-most populous state. The… Read More

By Oak Simmons 7 hours ago

Explore the 32 Incredible 6-Letter Countries

Did you know that there are about 32 countries with 6-letter names? However, this statistic changes depending on the language and if territories and other communities are included. Keep reading… Read More

By Nixza Gonzalez 8 hours ago

What Is The Deepest Lake in Baja California?

Seal lions in the Bahía de Loreto National Park just outside the Baja California peninsula. The Baja California peninsula Baja California is a popular tourist spot due to its endless… Read More

By Justin Sexton 9 hours ago

Where Is Alaska? See Its Map Location and What Surrounds It

Alaska, the largest state in the United States, is a land of breathtaking natural beauty. Located in the far northwestern corner of North America, Alaska is famous for its extensive… Read More

By Clemence Maureen Feniou 9 hours ago

Watch in Wonder as a Colony of Ants Forms a Raft Out of Their Own Bodies

Most people wouldn't consider ants to be incredible creatures. However, they do some amazing things in the name of survival. This video shows fire ants that have formed a raft… Read More

By Rachael Monson 9 hours ago

Discover the Top 100 Cities That Start With M

Let's talk about some marvelous, majestic metropolises that start with the letter "M." There are hundreds of cities that start with the mesmerizing thirteenth letter of the alphabet. The letter… Read More

By Em Thomas 9 hours ago

Discover 7 Awesome Fluffy Chicken Breeds

Is there anything cuter than an awesome, fluffy chicken? If you keep chickens, like chickens, or just want to enjoy some pics and facts about these adorably fluffy birds, you'll… Read More

By Katie Melynn Wood 10 hours ago

The 8 Deepest Lakes in Arizona

Arizona is popular for its ridiculously hot desert climate, The Grand Canyon, and the surprising amount of lakes that the state has. The sixth largest state in America has one… Read More

By Justin Sexton 11 hours ago

Winterizing Geraniums: How to Care for Geraniums in Winter

Geraniums are well-known and loved for their colorful varieties and low-maintenance nature. Yet, many gardeners who plant these lively perennials are shocked when they don't return in the spring. Winterizing… Read More

By Nikita Ross 11 hours ago

The Most Terrifying Bridge in Montana Will Put You in a Cold Sweat

Montana uniquely blends vast expanses of prairies, the rugged Rocky Mountains, and frightening tales of the Wild West. The structure sure to put you in a cold sweat was completed… Read More

By Mandy Trotti 11 hours ago

Discover the 5 Poorest Towns in Michigan

Many issues in life are relative, except poverty. The U.S. Census Bureau breaks down the national median household income of $74,580 to define familial scarcity. The percentage of people in… Read More

By Angela Underwood 11 hours ago

Discover the Two Nuclear Power Plants in California

California is a state with a lot. A lot of people, a lot of coastline, and a lot of land. Because of all that, however, it also has a lot… Read More

By Colby Maxwell 12 hours ago

The Biggest October Snowstorm in Michigan History Will Blow Your Mind

The state of Michigan is no stranger to massive snowstorms. As a northern state in the middle of the Great Lakes, it receives plenty of moisture and arctic blasts of… Read More

By Rob Amend 12 hours ago

Male vs. Female Lions: 5 Key Differences

Lions, scientifically known as Panthera leo, are the second largest member of the big cat species. This species includes lions, tigers, jaguars, and leopards. Known for their size, strength, and… Read More

By Trey Fox 12 hours 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.