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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.

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Latest from A-Z Animals

Discover the 8 Fastest-Growing Counties in North Carolina

For years, people have been flocking to North Carolina from other parts of the country, especially northern cities. The affordable properties, lower cost of living, warmer weather, and access to… Read More

By Carrie Woodward 19 mins ago

October 22 Zodiac: Sign, Personality Traits, Compatibility and More

If you’re an October 22 zodiac sign, your birthday falls on the very last day of Libra season. As a Libra (if you have a birthday anytime between September 23rd… Read More

By August Croft 59 mins ago

Discover 9 Amazing Types of Daffodils 

From beautiful color combinations to heirloom cultivars, there are many amazing types of daffodils! With so many varieties, it's no wonder that the daffodil is one of the most popular… Read More

By Jennifer Haase 1 hour ago

The 17 Most Spectacular Sea Caves in the World

Mesmerizing sea caves are found throughout the world. They form when wave action from the sea erodes sediments along coastlines, primarily in high-energy tidal environments. The pure power of the… Read More

By Niccoy Walker 1 hour ago

Alder lake Fishing, Size, Depth, And More

Alder Lake in Wisconsin's Vilas County is the most sought-after destination by anglers, professional and novice. This lake offers a tranquil backdrop for an unforgettable fishing experience because it’s surrounded… Read More

By Kaleigh Moore 2 hours ago

December 31 Zodiac: Sign, Personality Traits, Compatibility and More

The final day in any given calendar year, being a December 31 zodiac sign is special. And you’re a Capricorn if you were born on December 31st! In astrology, Capricorn… Read More

By August Croft 3 hours ago

Alligators in Tampa: Are You Safe to Go in the Water?

Alligators in Tampa, Florida, can provide an unforgettable and thrilling outdoor experience. From crystal-clear springs to pristine rivers, there's no better place to take a dip in nature's aquatic playground… Read More

By Kaleigh Moore 3 hours ago

Discover the Longest Bridge in Idaho – A 9,300-Foot Monster

Discover the longest bridge in Idaho. For a short time in the early 1900s, some considered it the longest bridge in the world. Tucked away amidst the mesmerizing natural beauty… Read More

By Ashley Day 3 hours ago

See a Pack of Wild Dogs Literally Dig Out a Warthog From Its Burrow

These wild dogs may have you rethinking the label “man’s best friend.” In the video found below, a pack of wild dogs ferociously hunts down a warthog, going so far as to… Read More

By Ryan Fisher 3 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 Asian Longhorn Beetle
Animals that Start with A

Example: The Asian Longhorn Beetle

A Bison
Animals that Start with B

Example: The Bison

A Cricket
Animals that Start with C

Example: The Cricket

A Dragon Snake (Javan Tubercle Snake, Javan Mudsnake)
Animals that Start with D

Example: The Dragon Snake (Javan Tubercle Snake, Javan Mudsnake)

A Emperor Angelfish
Animals that Start with E

Example: The Emperor Angelfish

A Fiddler Crab
Animals that Start with F

Example: The Fiddler Crab

A Golden Retriever Mix
Animals that Start with G

Example: The Golden Retriever Mix

A Huskydoodle
Animals that Start with H

Example: The Huskydoodle

A Insects
Animals that Start with I

Example: The Insects

A Japanese Terrier
Animals that Start with J

Example: The Japanese Terrier

A Kingklip
Animals that Start with K

Example: The Kingklip

A Lancashire Heeler
Animals that Start with L

Example: The Lancashire Heeler

A Miniature Husky
Animals that Start with M

Example: The Miniature Husky

A Norway Rat
Animals that Start with N

Example: The Norway Rat

A Owlfly (Ascalaphidae)
Animals that Start with O

Example: The Owlfly (Ascalaphidae)

A Parakeet
Animals that Start with P

Example: The Parakeet

A Quetzal
Animals that Start with Q

Example: The Quetzal

A Roe Deer
Animals that Start with R

Example: The Roe Deer

A Sharp-Tailed Snake
Animals that Start with S

Example: The Sharp-Tailed Snake

A Telescope Fish
Animals that Start with T

Example: The Telescope Fish

A Uintatherium
Animals that Start with U

Example: The Uintatherium

A Viperfish
Animals that Start with V

Example: The Viperfish

A Walking Catfish
Animals that Start with W

Example: The Walking Catfish

A Xeme (Sabine’s Gull)
Animals that Start with X

Example: The Xeme (Sabine’s Gull)

A Yellowthroat
Animals that Start with Y

Example: The Yellowthroat

A Zebra Spitting Cobra
Animals that Start with Z

Example: The Zebra Spitting Cobra

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!

Watch a Tiny Mink Chase Down and Capture a Rabbit Through Snow

Everyone loves a good snow day... right? The typical animal may frolic in the snow, but this mink would rather hunt in it! In the video, we can see a… Read More

By Ryan Fisher 3 hours ago

Watch a Beaver Dam Collapse and Instantly Drain the Massive Pond It Had Built

There have been some devasting dam collapses in human history. Most notable, perhaps, was the failure of the South Fork Dam near Johnstown, Pennsylvania in May 1889. Its collapse released… Read More

By Sharon Parry 4 hours ago

What Is a ‘Supermoon’ and When Can You See One?

Have you ever heard of the term 'supermoon?' The term supermoon is relatively new to astronomy. It's only in the past four decades that it's become popular. A supermoon appears… Read More

By Mitchelle Morgan 5 hours ago

12 Perfect Canadian Ski Towns You Will Never Want to Leave

Canada offers some of the most picturesque ski towns in the world, with breathtaking winter landscapes stretching as far as the eye can see. From the charm of small towns… Read More

By Kaleigh Moore 5 hours ago

Watch This Beastly Crocodile Singlehandedly Scare off 3 Cheetahs and Steal Their Lunch

To be a successful predator, you have to do a lot more than simply catch your prey. You also have to be able to hang onto it long enough to… Read More

By Sharon Parry 5 hours ago

The Steepest Road in Colorado Is a Terrifyingly Treacherous Path

Colorado is known for the stunningly beautiful Rocky Mountains. There are numerous activities for outdoor enthusiasts, such as skiing, hiking, mountain biking, rafting, and climbing. But to get to these activities, one… Read More

By Jennifer Geer 5 hours ago

What Lives at the Bottom of the Puget Sound?

The Puget Sound is a system of interconnected marine waterways and basins. This provides lots of habitat for animals, supporting a diversity of life. You'll find tons of different animals… Read More

By Kristin Hitchcock 6 hours ago

Kayaker Captures One of the Most Heart-Stopping Shark Attacks Ever Recorded

Kayaking is a great way to experience the great outdoors. Not only does paddling on the water give you a unique perspective of your surroundings, but it’s also an excellent… Read More

By Kirstin Harrington 6 hours ago

Discover the Official State Fish of New York (And Where You Can Catch Them This Summer)

Oh, New York, New York! The big apple is home to many different types of fish along its coastlines and inside its rivers and lakes. From small, rarely-seen species of… Read More

By Ella Coppola 6 hours ago

Watch This Huge Lion Turn Into a Stealth Ninja and Quietly Sneak Up on Its Dinner

Lions are expert hunters and know how to get just about any prey they want. Large animals weighing 100 to 1,000 pounds, like zebra and wildebeest, are the main prey… Read More

By Kirstin Harrington 7 hours ago

Discover 10 Biggest Types Of Grouper Fish

Grouper is a type of saltwater fish that belongs to the family Serranidae. Grouper characteristics include their large size, powerful bodies, and delicious taste. You can find grouper species worldwide,… Read More

By Ella Coppola 7 hours ago

The Most Dangerous Zodiac Sign Uncovered

Even true believers of astrology must take zodiac sun signs with a grain of salt. The sun sign is an important part of someone's astrology, but it is only one… Read More

By Dayva Segal 7 hours ago

Discover the Top 5 Tallest Volcanoes in Utah

As a state in the Mountain West region, it’s not surprising that Utah has some impressive mountains, with Kings Peak standing at an impressive 13,123 feet tall. However, the state… Read More

By Hannah Ward 7 hours ago

The Largest Dam in Alaska Is an Architectural Masterpiece

Dams serve an essential role in controlling surface water resources. They create reservoirs that supply water for irrigation, recreation, and human consumption. Dams can also generate hydroelectricity and provide flood… Read More

By Patrick Sather 7 hours ago

Discover the June Heatwave That Turned Colorado Into a Fiery Oven

According to the National Weather Service, June 2012 ranked as the worst June heatwave in Colorado's history hottest June on record. From 1981 to 2010, Colorado recorded a mean temperature… Read More

By Patrick Sather 7 hours ago

20 Cats with the Shortest Lifespan

Cats can make for a purrfect companion for individuals looking for a housemate or a family wanting to expand. However, some cats live a lot longer or shorter than others,… Read More

By Lev Baker 10 hours ago

7 Fantastic Roses That Can Grow in South Dakota

Although no rose species are native to South Dakota, there are a number of rose cultivars that thrive in the region's environment. Let’s take a look at some specially-bred rose… Read More

By Em Casalena 15 hours ago

8 Birds You’ll See Along South Carolina’s Coastline and Beaches

South Carolina's sun-dappled shores and pristine beaches aren't just a paradise for beachgoers. They’re also a haven for an array of birds! The state's coastal landscapes serve as permanent homes… Read More

By Lev Baker 15 hours ago

Discover the Lowest Point in Alaska

The United States has diverse terrain, from low-lying desert basins to tall icy mountain peaks. While Alaska has a lot of mountainous regions with extremely lofty summits, it also has… Read More

By Ella Coppola 16 hours ago

Discover the 12 Most Popular Long-Haired Dog Breeds

Have you ever dreamed of having a dog with long luscious locks, looking picture-perfect as you walk through the park? The showstoppers on this list are perfect for those wanting… Read More

By Niccoy Walker 16 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.

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.