Animals that Start with O



Read below for information on 12 different animals that start with the letter O, from ocelot to oyster. The most popular animal that starts with the letter O is the ocelot, a small cat also known as the painted leopard. The least popular O animal is the orangutan. Some can grow to be up to 200lbs, making them one of the largest primates in the world. Some fun facts about letter O name animals are:


Jump to any letter



A Ocelot
Ocelot

Also known as the Painted Leopard!

A Old English Sheepdog
Old English Sheepdog

Intelligent, sociable and playful!


Animals that Start with O

Ocelot

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Felidae
Genus
Leopardus
Scientific Name
Leopardus pardalis

Fun Fact: Also known as the Painted Leopard!

Ocelot Classification and Evolution The Ocelot is a medium-sized small cat that is native to the jungles of South America. The Ocelot is also known as the Painted Leopard due to the beautifully distinctive markings on its fur as it displays dark rosettes, along with spots and stripes. Similar in colouration to the much smaller […] Read More


Octopus

Kingdom
Animalia
Phylum
Mollusca
Class
Cephalopoda
Order
Octopoda
Family
Octopodidae
Scientific Name
Octopus Vulgaris

Fun Fact: There are around 300 different species!

The octopus holds the distinction of being the most intelligent of all invertebrate animals. With the highest brain-to-body-mass ratios of all invertebrates – higher even than those of some vertebrates – the octopus is regarded as the smartest of all invertebrate animals. These cephalopods are intelligent enough to engage in deceitful activities, including pretending to […] Read More


Okapi

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Artiodactyla
Family
Giraffidae
Genus
Okapia
Scientific Name
Okapia johnstoni

Fun Fact: Eats more than 100 different types of plant!

Okapi Classification and Evolution The Okapi is an elusive, herbivorous animal that is found in a small pocket of tropical mountain forest in central Africa. Despite its Deer-like appearance the Okapi is actually one of the last remaining ancestors of the Giraffe, which is the tallest animal on Earth. Along with having a relatively long […] Read More


Old English Sheepdog

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
Genus
Canis
Scientific Name
Canis Lupus

Fun Fact: Intelligent, sociable and playful!

With its big shaggy coat, obscured eyes, and white and gray color scheme, the Old English Sheepdog is one of the most recognizable breeds in the world. Its very appearance seems to radiate friendly and approachable energy. This breed originated at some point in the 19th century from the region of Cornwall in southwestern England […] Read More


Olm

Kingdom
Animalia
Phylum
Chordata
Class
Amphibia
Order
Caudata
Family
Proteidae
Genus
Proteus
Scientific Name
Proteus anguinus

Fun Fact: Inhabits dark underwater caves

“The longest-lived amphibian, the olm can live to be 100 years old!” One of the most fascinating creatures in a world full of fascinating creatures, the olm, like its distant relative the axolotl is a completely aquatic salamander, with gills and tailfins. It is born, lives its long lifespan, and eventually dies in the water. […] Read More


Opossum

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Didelphimorphia
Family
Didelphidae
Genus
Didelphis
Scientific Name
Didelphis Virginiana

Fun Fact: Thought to be immune to certain snake venom!

Opossums hold the distinction of being the only marsupial that lives in the United States and Canada! Throughout much of United States history, opossums were animals that were widely hunted and consumed by people. Although this remains true in some areas of the southern U.S., these savvy marsupials are now better known as pests due […] Read More


Orang-utan

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Primates
Family
Hominidae
Genus
Pongo
Scientific Name
Pongo pygmaeus, Pongo abelii, Pongo tapanuliensis

Fun Fact: Shares 97% of its DNA with humans!

Orang-utan Classification and Evolution The Orang-utan is one of the largest primates in the world and is the only member of the Great Ape family that is found outside of Africa. There are three species of Orang-utan found in the steamy jungles on the islands Borneo and Sumatra which are the Bornean Orang-utan, the Sumatran […] Read More


Orb Weaver

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Araneidae

Fun Fact: Females are about four times the size of males

The Orb Weaver is a spider commonly found outside homes, in hedges, tall grasses, and trees. They are a helpful predator who feeds off the pest bugs we don’t like, such as mosquitoes, beetles and other bothersome flying insects. They build elaborate, circular webs and are most often seen in late summer and early fall. […] Read More


Ostrich

Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Struthioniformes
Family
Struthionidae
Genus
Struthio
Scientific Name
Struthio camelus

Fun Fact: The largest bird in the world!

The ostrich is among the largest types of birds in the world. The ostrich bird looks like an unusual chimera cooked up in a lab. When writing about the ostrich, the Greek philosopher Aristotle did not know whether to classify it as a bird or a mammal. But in fact, the ostrich belongs to that […] Read More


Otter

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Mustelidae
Genus
Lutra
Scientific Name
Lutra Canadensis

Fun Fact: There are 13 different species worldwide

“Giant otters are notorious chatterboxes“ Just like many people, there are giant otters that are considered chatterboxes for their species. Though they can’t form words, they have a vocabulary that consists of 22 recognizable noises. Each noise is used to address a different type of situation. This is how giant otters effectively communicate with each […] Read More


Otterhound

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
Genus
Canis
Scientific Name
Canis lupus

Fun Fact: Otterhounds have webbed feet making them great swimmers!

Otterhounds have webbed feet and are expert swimmers! The history of this shaggy dog dates all the way back to 14th century England. These dogs were bred to hunt otters and remove them from streams and lakes. This is so otters couldn’t steal the fish away from fishermen in the area. Bloodhounds and French hounds […] Read More


Oyster

Kingdom
Animalia
Phylum
Mollusca
Class
Bivalvia
Order
Ostreoida
Family
Ostreidae
Scientific Name
Ostreidae

Fun Fact: Can process up to 10 litres of water an hour!

Oysters make up a family of a large number of salt-water bivalve mollusks. Oysters are marine animals that are often found in brackish habitats. They are very irregular in shape and the valves of some are highly calcified. They belong to the phylum Mollusca. Oysters are animals that eat algae and other food particles that […] Read More



Alphabetical List of Animals That Start with O

Newest Animals that Start with the Letter O

The most recently added Animals that start with the letter O.

A Orb Weaver
Orb Weaver

Females are about four times the size of males

A Otterhound
Otterhound

Otterhounds have webbed feet making them great swimmers!

A Opossum
Opossum

Thought to be immune to certain snake venom!

Animals that start with the letter O, including the Ocelot & Old English Sheepdog
";