In English, many familiar animal names start with the letter D.
From the loyal dog at home, to graceful deer in the forest, to intelligent dolphins in the sea, “animals that start with D” live in almost every kind of habitat on Earth.
On this page, you’ll find a detailed, user-friendly guide to Animals That Start With D, including:
A quick reference list of D-animals
An overview table with class, habitat, diet and fun facts
Detailed profiles of representative D animals (mammals, birds, reptiles, fish, amphibians, invertebrates)
FAQs that match common search queries (pets, wild animals, dangerous species, etc.)
This structure makes it easy for students, teachers, parents and animal lovers to quickly scan and learn.
Here is a fast alphabetical list of animals that begin with D. Some are very common, others are more unusual.
Dog
Dolphin
Deer
Dingo
Donkey
Dromedary camel
Duck
Dove
Dodo (extinct, but very famous “D animal”)
Desert tortoise
Diamondback rattlesnake
Damselfish
Dragonfly
Dung beetle
Next we’ll look at a quick overview table, then dive into detailed profiles.
The table below summarizes 15 representative Animals That Start With D, including their class, main habitat, typical diet, and a fun fact.
| Animal | Class | Main Habitat | Typical Diet | Fun Fact |
|---|---|---|---|---|
| Dog | Mammal | Human homes, farms, towns | Omnivore (dog food, meat, scraps) | One of the first animals domesticated by humans, with hundreds of breeds. |
| Dolphin (bottlenose) | Mammal | Coastal seas and open oceans | Carnivore (fish, squid) | Uses echolocation to “see” with sound underwater. |
| Deer | Mammal | Forests, grasslands, mountains | Herbivore (leaves, grass, shoots) | Males of many species grow antlers that are shed and regrown each year. |
| Dingo | Mammal | Australian deserts, grasslands, forests | Carnivore (small mammals, carrion) | A wild dog of Australia, often living in family groups. |
| Donkey | Mammal | Farms, grasslands, semi-arid regions | Herbivore (grass, hay, shrubs) | Known for sure-footedness and loud braying; used as working animals. |
| Dromedary camel | Mammal | Hot deserts of North Africa and Arabia | Herbivore (dry grasses, thorny plants) | Has a single hump that stores fat for energy in harsh conditions. |
| Duck | Bird | Lakes, ponds, rivers, wetlands | Omnivore (aquatic plants, insects) | Many ducks have waterproof feathers and webbed feet for swimming. |
| Dove | Bird | Forests, towns, parks, farmlands | Herbivore (seeds, fruits) | Often seen as a symbol of peace and love. |
| Dodo | Bird | (Extinct) formerly forests of Mauritius | Herbivore (fruits, seeds) | A large flightless bird that became extinct in the 1600s. |
| Desert tortoise | Reptile | Deserts and dry shrublands | Herbivore (grasses, flowers, cacti) | Can store water in its bladder and survive long dry periods. |
| Diamondback rattlesnake | Reptile | Deserts, grasslands, rocky hills | Carnivore (rodents, small animals) | Venomous snake recognized by its rattle-tipped tail. |
| Dart frog | Amphibian | Tropical rainforests of Central & South America | Carnivore (ants, mites, insects) | Some species are brightly colored and extremely poisonous. |
| Damselfish | Fish | Coral reefs in tropical oceans | Omnivore (algae, plankton, small invertebrates) | Small, colorful reef fish that defend tiny territories. |
| Dragonfly | Insect | Ponds, lakes, wetlands, streams | Carnivore (mosquitoes, small insects) | Skilled aerial hunters that can catch prey while flying. |
| Dung beetle | Insect | Grasslands, savannas, forests, farms | Dung and decaying organic matter | Roll and bury dung balls, recycling nutrients into the soil. |
Below are more detailed explanations for some of the most representative Animals That Start With D, organized by class.
Class: Mammal
Habitat: Human homes, farms, towns, and villages worldwide
Diet: Omnivore – commercial dog food, meat, grains, vegetables
Key features:
Dogs were domesticated from wolves thousands of years ago and have since become one of humans’ closest companions.
There are hundreds of breeds, from tiny Chihuahuas to giant Great Danes, bred for different purposes: guarding, herding, hunting, companionship and more.
Dogs have an excellent sense of smell and hearing, and some work as guide dogs, rescue dogs, or detection dogs.
Fun fact:
A dog’s nose has millions more scent receptors than a human nose, which is why they can track scents over long distances and time.
Class: Mammal
Habitat: Warm and temperate coastal seas and open oceans
Diet: Carnivore – fish, squid, and other small aquarium/52-marine-animals.html">marine animals
Key features:
dolphins.html">Dolphins are highly intelligent and social, often living in groups called pods.
They use echolocation: sending out sound waves and listening to the echoes to locate objects and prey.
Bottlenose dolphins are known for playful behavior, sometimes riding waves or leaping out of the water.
Fun fact:
Dolphins can recognize themselves in mirrors and may have unique “signature whistles” similar to names.
Class: Mammal
Habitat: Forests, meadows, mountains, and grasslands around the world
Diet: Herbivore – leaves, grass, twigs, buds, and fruits
Key features:
Deer are hoofed mammals, and males of many species (such as white-tailed deer and red deer) grow antlers each year.
Antlers are used in displays and fights during the mating season, then are shed and regrown.
Deer are important prey animals for large predators like wolves, cougars, and tigers.
Fun fact:
Deer have a wide field of vision thanks to eyes placed on the sides of their head, helping them watch for danger.
Class: Mammal
Habitat: Deserts, grasslands, forests, and scrublands of Australia
Diet: Carnivore – small mammals, birds, reptiles, carrion, sometimes fruits
Key features:
Dingoes are wild dogs that likely descended from domestic dogs brought to Australia thousands of years ago.
They often live in pairs or family groups and hunt mainly at night or in the cool hours of morning and evening.
Dingoes play an important role as top predators, helping control populations of rabbits and other introduced animals.
Fun fact:
Because dingoes can interbreed with domestic dogs, pure wild dingoes are becoming rarer in some areas.
Class: Mammal
Habitat: Farms, rural villages, grasslands and semi-desert regions worldwide
Diet: Herbivore – grasses, hay, shrubs, dry vegetation
Key features:
Donkeys are hardy working animals known for their sure-footedness and ability to carry heavy loads over rough terrain.
They are closely related to horses but generally smaller, with longer ears and a characteristic braying call.
Donkeys are often used as pack animals, in agriculture, or kept as companion animals.
Fun fact:
Despite their reputation for being “stubborn”, donkeys are actually cautious and will refuse to move if they sense danger.
Class: Mammal
Habitat: Hot deserts and dry regions in North Africa, the Middle East and parts of Asia
Diet: Herbivore – dry grasses, shrubs, thorny plants, leaves
Key features:
Dromedary camels have one hump (Bactrian camels have two). The hump stores fat, which can be converted into energy and water when food is scarce.
They are extremely well adapted to desert life: long eyelashes, closable nostrils, thick lips, and pads on their feet for walking on hot sand.
People use camels for transport, milk, meat and even as racing animals in some cultures.
Fun fact:
A thirsty camel can drink dozens of liters of water in a short time when it finally reaches an oasis.
Class: Bird
Habitat: Lakes, ponds, rivers, wetlands in both wild and farm environments
Diet: Omnivore – aquatic plants, seeds, insects, small crustaceans
Key features:
Ducks have webbed feet that act like paddles for swimming and diving.
Many ducks have waterproof feathers. They spread oil from a gland near their tail to keep water from soaking in.
Ducks can be wild or domestic; domestic ducks are raised for eggs, meat and sometimes as ornamental birds.
Fun fact:
Not all duck quacks echo in obvious ways, which led to the myth that “a duck’s quack doesn’t echo” – but in fact, it does.
Class: Bird
Habitat: Forests, woodlands, farmlands, cities and parks worldwide
Diet: Herbivore – seeds, grains, fruits and occasionally small invertebrates
Key features:
Doves are closely related to pigeons; in everyday language, “dove” often refers to smaller, lighter-colored species.
They have soft cooing calls and swift, direct flight.
Many species form strong pair bonds and take turns caring for eggs and chicks.
Fun fact:
Doves are widely used as symbols of peace, love and purity in art, religion and literature.
Class: Reptile
Habitat: Deserts and dry shrublands of the southwestern United States and northern Mexico
Diet: Herbivore – grasses, wildflowers, cacti and other desert plants
Key features:
Desert tortoises spend much of their time in burrows to avoid extreme heat and cold.
They can store water in their bodies and survive long dry periods by conserving moisture.
Their strong, domed shells protect them from predators and the harsh environment.
Fun fact:
Desert tortoises can live for 50–80 years or more, making them one of the longest-lived reptiles in their native habitat.
Class: Amphibian
Habitat: Humid tropical rainforests of Central and South America
Diet: Carnivore – ants, mites, small insects and other tiny invertebrates
Key features:
Many dart frogs are brightly colored with patterns of blue, yellow, red or green – a warning signal to predators that they may be toxic.
Some species have skin toxins strong enough to harm or even kill larger animals. Indigenous people historically used these toxins on blowgun darts, giving the frogs their name.
Their toxicity is linked to their diet in the wild; frogs raised in captivity on different food are usually far less toxic.
Fun fact:
Not all dart frogs are equally poisonous; some are relatively mild, while others are among the most toxic vertebrates on Earth.
Class: Fish
Habitat: Tropical coral reefs in the Atlantic, Indian and Pacific Oceans
Diet: Omnivore – algae, plankton, tiny crustaceans
Key features:
Damselfish are small, often brightly colored reef fish that may be blue, yellow or multicolored.
Many species defend very small territories, including “gardens” of algae they cultivate and eat.
They provide food for bigger predators and help control algae growth on reefs.
Fun fact:
Some damselfish will chase away fish much larger than themselves to protect their tiny patch of reef.
Class: Insect
Habitat: Near ponds, streams, lakes and wetlands worldwide
Diet: Carnivore – mosquitoes, flies, and other small flying insects
Key features:
Dragonflies have large eyes, two pairs of strong wings and long slender bodies.
They are excellent fliers, able to hover in place, fly backwards and change direction quickly.
Dragonfly larvae (called nymphs) live underwater and are also fierce predators.
Fun fact:
Dragonflies can catch prey in mid-air with an impressive success rate, making them natural mosquito controllers.
Class: Insect
Habitat: Grasslands, savannas, forests, farmland and even deserts
Diet: Dung (animal droppings), decaying plant material, carrion
Key features:
Many dung beetles roll balls of dung away from the original pile, then bury them as food stores or as places to lay eggs.
They play a crucial role in ecosystems by recycling nutrients, improving soil structure and reducing parasites in pastures.
Some species navigate using the sun, the moon, or even the Milky Way.
Fun fact:
A few dung beetle species are incredibly strong for their size, capable of moving objects many times their own body weight.
There is no fixed number, because:
New species continue to be discovered.
Common names vary across regions and languages.
However, in English there are hundreds of animal names starting with D, covering all major groups:
Mammals: dog, dolphin, deer, dingo, donkey, dromedary camel
Birds: duck, dove, dodo, drongo
Reptiles: desert tortoise, diamondback rattlesnake, desert iguana
Fish: damselfish, dogfish, dolphinfish (also called mahi-mahi)
Amphibians: dart frog, desert rain frog
Invertebrates: dragonfly, dung beetle, damselfly, dog whelk and many more
Common pet animals that start with D include:
Dog – one of the world’s most popular companion animals
Dwarf rabbit – small rabbit breeds often kept as pets
Dove – some species are kept in aviaries or as homing pigeons
Domestic duck – kept on farms or in large gardens
Dwarf hamster – often sold as “dwarf hamsters” (though some common names start with other letters)
Always research care requirements, space, diet and lifespan before choosing any pet.
Several wild D animals can be dangerous if threatened or handled carelessly:
Diamondback rattlesnake – venomous snake with a potentially serious bite
Dart frog – some species have extremely potent skin toxins (dangerous if handled or ingested)
Dingo – usually shy of humans, but still a wild predator
Dog (feral or aggressive individuals) – most dogs are safe if trained and treated well, but bites can be dangerous
In general, most wild animals prefer to avoid humans. Respecting their space and following safety guidelines greatly reduces risk.
Some Animals That Start With D play key roles in their ecosystems:
Dung beetles – recycle nutrients, bury dung, improve soil and reduce parasites.
Dragonflies – help control mosquito and small insect populations.
Deer – important herbivores that shape plant communities, and provide prey for large predators.
Dolphins – top predators in marine food webs, helping keep fish populations balanced.
Damselfish – influence algae growth and provide food for larger reef predators.
Protecting these species helps maintain healthy, balanced ecosystems on land and in water.
By exploring this guide to Animals That Start With D, you’ve seen how a single letter of the alphabet can connect a huge variety of life—from dogs and dolphins to desert tortoises, dragonflies and dung beetles.
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We created this article in conjunction with AI technology, then made sure it was fact-checked and edited by a Animals Top editor.