Discover the strongest, smartest, and fastest animals in the world by searching below, or scroll to see all animals listed from A-Z. We are the largest website of our kind for wild animal and pet lovers worldwide!
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
What is Horsepower, and How Much Does a Horse Have?
Key Points Horsepower is a unit of measurement for power. It is used for machines, not animals. One horsepower is defined as the amount of power required to lift 550… Read More
By Heather Hall 1 hour ago
Discover 14 Dazzling Birds That Start With W
Introduction Over 10,000 species of birds exist across the globe, and around 1,000 extinct species have been discovered. While most animals on Earth are marine or terrestrial, these creatures of… Read More
By Eliana Riley 1 hour ago
Guinea Pig Prices 2023: Purchase Cost, Supplies, Food, and More!
Owning a guinea pig is like having your very own living, cuddly stuffed animal! These funny, gentle, and forgiving animals make the perfect pets for families who want a low-maintenance… Read More
By Andrew Wood 2 hours ago
Amoxicillin Dosage Chart for Cats: Risks, Side Effects, Dosage, and More
If your cat is suffering from a bacterial infection, your vet might prescribe amoxicillin as a treatment. You may have some questions about amoxicillin, and how this medication may affect… Read More
By Cammi Morgan 3 hours ago
Smallmouth Bass Size Comparison: Just How Big Do They Get?
Key Points: The smallmouth bass is a freshwater member of the Centrarchidae (sunfish) family native to central and eastern North America. It has been introduced to other regions, becoming an… Read More
By Rob Amend 4 hours ago
The Hottest June in Hawaii History Was an Epic Scorcher
When June hits Hawaii, it means summer has arrived, and the masses of tourists come with it. While it is not the hottest month, many visitors believe some of the… Read More
By Chanel Coetzee 4 hours ago
The Longest Tunnel in Oregon Includes a Time Travel Adventure
The longest tunnel in Oregon is technically two tunnels, or bores, that run side by side through the Tualatin mountains, extending light rail service from downtown Portland westward to the… Read More
By Rick Chillot 5 hours ago
Discover 5 of the Oldest Cities in North Dakota
With a population of only 775,000, North Dakota is one of the most unspoiled states in the United States. It's known for farming, mining, and petroleum products and wide-open, big-sky… Read More
By Andrew Wood 5 hours ago
What Kind of Dogs Are Lady and the Tramp? Breed Information, Pictures, and Facts
The 1955 animated film Lady and the Tramp features one of the most famous rom-com scenes of all time. Two characters from different worlds, thrown together by circumstance, find themselves… Read More
By Rick Chillot 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:
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.
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 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, 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.
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.
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.
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.
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.
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.
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
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!
Healthy Betta Fish vs Unhealthy: 10 Warnings Signs
Bettas or Siamese fighters are small, tropical fish that have been kept as pets for over 100 years. They are usually the first choice of fish for those who want… Read More
By Sarah Psaradelis 5 hours ago
Why Does the Fainting Goat, Well… Faint? Learn More About the Bizarre Behavior
The video below starts with an adorable brown and white checkered goat walking around the little farm he is on with other goats surrounding him. Then all of a sudden,… Read More
By Hannah Crawford 6 hours ago
8 Rare and Beautiful Roses In Minnesota
There are a ton of different rose species and varieties out there. However, very few are native to Minnesota or have been developed in the North Star State. That being… Read More
By Em Casalena 6 hours ago
20 Must-Visit Small Towns in North Carolina
Do you love visiting charming small towns in the US? If so, North Carolina is a haven of quaint villages and small cities. Whether you’re looking to stay somewhere nestled… Read More
By Niccoy Walker 6 hours ago
Discover The Largest Rainbow Trout Ever Caught in South Carolina
Rainbow trout are part of the salmon family and native to the northern Pacific Ocean, from the Americas to Russia. However, today, they occur in several countries, including the United… Read More
By Larissa Smith 7 hours ago
Discover Where ‘Silverado’ Was Filmed: Best Time to Visit, Wildlife, and More!
Silverado (1995) is an award-winning American Western film starring Kevin Kline, Danny Glover, Scott Glenn, Kevin Costner, and Linda Hunt. This exciting movie was released on July 10, 1985, and… Read More
By Nixza Gonzalez 7 hours ago
5 Types of Reverse Bicolor Daffodils
If you'd never heard of a reverse bicolor daffodil until now, you're probably not alone. But it won't be long until more gardeners are talking about these unique spring flowers.… Read More
By Jennifer Haase 7 hours ago
The Most Expensive Beaches in Louisiana to Buy a Second Home
The state of Louisiana has a rich history packed with heritage and culture. However, it also has a spectacular terrain famous for its marshes, deltas, and swamps. Additionally, its longleaf… Read More
By Chanel Coetzee 7 hours ago
6 Stunning Native Roses From New Mexico
When we think of the typical rose, we usually think of hybrids or cultivars that were specifically created for use in bouquets, flower arrangements, rose gardens, etc. Contrary to popular… Read More
By Em Casalena 7 hours ago
Explore 20 Fish That Start with C (Their Common Names)
From the colorful and charismatic clownfish to the eerie and elusive cuttlefish, there are so many different types of fish with common names that start with the letter C! Some,… Read More
By Kyler Matthews 7 hours ago
The Most Snake-infested Lakes in Tennessee
Did you know that in all of Tennessee there are no snakes that have the ability to spend 100% of their time in the water? It seems even snakes need… Read More
By Kathryn Koehler 8 hours ago
Discover the Tallest Tree in Florida – An 84-Foot Behemoth
Florida may not be known much for their trees in the way that states like California are known for their redwoods. That being said, there are some pretty massive trees… Read More
By Em Casalena 8 hours ago
What’s in the Red River and Is Is Safe to Swim In?
The Red River, specifically the Red River of the South is a massive river that runs through many states. The color red isn't very appealing, especially when swimming. Is the… Read More
By Nixza Gonzalez 8 hours ago
Would You Cuddle a Snake? Meet the 10 Friendliest Snakes in North America
Real talk: even the friendliest snake in North America isn’t going to come slithering when you call its name, or do figure eights around your legs like a cat (they’d… Read More
By Rick Chillot 8 hours ago
October 20 Zodiac: Sign, Personality Traits, Compatibility and More
You’re a Libra if you’re an October 20 zodiac sign! Elegant and fair, Libra season occurs from September 23rd to October 22nd, depending on the year you were born. Whether… Read More
By August Croft 8 hours ago
Discover ‘Bird Island’ with Nearly 1,000,000 Inhabitants
There's a place at the northernmost tip of the Seychelles that's massively popular. It's been visited by — surprise — over one million sea birds! From nesting birds who travel… Read More
By Abby Parks 8 hours ago
Watch a Valiant Lioness Stand Strong Against a Pack of Wild Dogs and Defend Her Cub
As a lioness appears to be facing down a pack of African wild dogs the chaos rises. A tourist group in the Maasai Mara National Reserve filmed the interaction. Onlookers… Read More
By Rachael Monson 9 hours ago
Discover the Color of Saturn: Photos, Explanation, and More!
What color is Saturn? You'd think this question would be a no-brainer. You've been seeing pictures of Saturn and the other planets since you were a kid. You probably know… Read More
By Andrew Wood 9 hours ago
7 Remote Lakes in Ohio to Fish and Swim
Ohio has over 5000 natural and man-made lakes. However, not all are safe for swimming, and many don't allow fishing. But, if you are looking for something more secluded where… Read More
By Larissa Smith 9 hours ago
Discover 8 Gorgeous Castles Found in Pennsylvania
Pennsylvania is a state filled with historical treasures and cultural richness. Framed by nature's finest artistry, it boasts eight castle-like establishments, each with unique charm and an intriguing narrative. These… Read More
By Ashley Day 9 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:
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.