Animals that Start with O | Listed with Pictures, Alphabetical List of 11 Animals Starting with O & Interesting Facts

Animals that Start with O in English: How many animals do you know with a name which starts with the alphabet O? If you don’t know many, there is no need to worry since we have included a list of animals worldwide whose names start with O. It is not humanely feasible to remember all these species, families, genus or varieties of animals living on earth.

We can find these animals on all the continents. We have included an interesting fact for each animal for your interest and knowledge. Some of these are animals, while some are the names of species. In this article you can find Sea, Farm, Zoo, Australian, African, Water and Land animals that start with O.

Learn the popular list of Animal Names in English with Pictures and example sentences and find the perfect match for your pet.

List of Animals Begins with Letter O

Name of Animals Whose Name Starts With O

List of Animal Names With Letter O At The Start

  1. Ocelot
  2. Octopus
  3. Okapi
  4. Old English Sheepdog
  5. Olm
  6. Opossum
  7. Orang-utan
  8. Ostrich
  9. Otter
  10. Otterhound
  11. Oyster

Fascinating Facts On The Animals On The List

Ocelot

The ocelot (Leopardus pardalis) is a spotted and medium-sized wild cat that grows to be 40–50 cm (15.7–19.7 in) in height at the shoulders and weighs between 8 and 15.5 kg. It is found in Africa, Asia, and the Americas (17.6 and 34.2 lb). Carl Linnaeus published the first description of it in 1758. Two subspecies have been identified. Its natural habitats include the southwestern United States, Mexico, South, and Central America, as well as the Caribbean islands of Margarita and Trinidad. It is endangered in the wild. It favours habitats adjacent to water sources, has dense plant cover, and has a high abundance of prey.

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

Octopus

Octopuses (plural octopuses; see below for variations) are molluscs with soft bodies and eight limbs that belong to the order Octopoda. The order Cephalopoda has around 300 species classified together with squids, nautiloids, and cuttlefish in the class Cephalopoda. An octopus, like other cephalopods, is bilaterally symmetrical, with a beaked mouth and two eyes in the centre of the eight limbs, which are arranged in a Y shape. The octopuses’ soft bodies have the ability to change their form dramatically, allowing them to fit through tiny spaces.

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

Animals that Start with O 3

Okapi

The okapi (Okapia johnstoni), also referred to as the forest giraffe, zebra giraffe, or Congolese giraffe, is an artiodactyl mammal that is found only in the northeastern Democratic Republic of the Congo in Central Africa. It is a member of the giraffe family. It stands around 1.5 metres (4.9 feet) tall at the shoulders and has a standard body length of approximately 2.5 metres (8.2 ft). Its weight fluctuates between 200 and 350 kg (440 to 770 lb). It has a long neck and broad-flexible ears, which make it a good candidate for breeding.

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

Old English Sheepdog

The Old English Sheepdog is a big breed of dog that originated in England due to the introduction of early types of herding dogs into the country. B ob-tailed sheep-dog and Shepherd’s Dog are two names for the breed that are no longer used. Due to the fact that dogs of this breed have historically had their nails clipped, they have earned the moniker Bob-tail (or Bobtail). If allowed to grow out their coats, Old English Sheepdogs can have fur covering their faces and eyes, not shed until they are combed.

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

Olm

The olm or also called proteus (Proteus anguinus), is an aquatic salamander belonging to the family Proteidae, and it is the only chordate species that lives solely in caves found in Europe. It is totally aquatic, in contrast to the majority of amphibians, and it sleeps, eats, and reproduces in water. It is found only in caves in the Dinaric Alps, where it is unique to the underground waters that run through the vast limestone bedrock of the region.

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

Opossum

Opossums are believed to have originated in South America and were introduced to North America during the Great American Interchange that occurred when the continents were connected. A combination of their unspecialised biology, adaptable food, and reproductive behaviours enable them to colonise new territory and survive in a variety of environments and climates.

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

Animals that Start with O 1

Orang-utan

Orangutans are giant apes that are endemic to the jungles of Malaysia and Indonesia, where they may be seen in large groups. The species is presently restricted to areas of Sumatra and Borneo, but during the Pleistocene epoch, it was widespread all throughout Southeast Asia and the southern Chinese peninsula. Unlike other primates, orangutans exhibit substantial sexual dimorphism; females generally weigh around 37 kg (82 pounds) and stand 115 cm (3 ft 9 in) tall, but flanged mature males often stand 137 cm (4 ft 6 in) tall and weigh 75 kg (150 pounds) (165 lb). The arms of male orangutans are around 2 m (6.6 ft) in length, compared to the arms of humans. They also have small legs when compared to humans.

Scientific Name  Pongo pygmaeus

Pongo abelii

Pongo tapanuliensis
Kingdom  Animalia
Phylum  Chordata
Class  Mammalia
Order  Primates
Family  Hominidae
Genus  Pongo

Ostrich

Struthio belongs to the genus of birds belonging to the order-Struthioniformes, which includes the ostriches as members. There are several species of ratites, including the rhea, the kiwi, and the emu, that belong to the infra-class Palaeognathae, a varied group of flightless birds known as ratites. There are two species of ostrich that are still alive today: the Somali ostrich and the common ostrich. Large flightless birds of Africa, they lay the biggest eggs of any extant land animal and are considered to be extinct. They are the quickest birds on land, capable of running at speeds of up to 70 kilometres per hour (43.5 miles per hour).

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

Otter

Otters are carnivorous mammals belonging to the subfamily Lutrinae, which means “otters eat other animals.” The 13 extant otter species are all semi-aquatic, marine, or aquatic in their habitat, and their meals are primarily comprised of invertebrates and fish. The Lutrinae are a subfamily of the Mustelidae, which contains animals such as badgers, weasels, wolverines, and mink, among others. The Mustelidae are commonly known as the badger family. Otters are distinguished by their long, slender bodies and relatively small limbs.

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

Otterhound

The Otterhound is a big, rough-coated hound with a powerful head that stands out in a pack. It was initially developed for hunting, and as a result, it possesses considerable strength and a powerful physique, as well as long-striding strides. This allows it to work for lengthy periods of time without tiring. The Otterhound hunts its prey both in water as well as on land, and it possesses a unique set of traits that distinguishes it from other hounds, including rough, oily, large webbed and double coat feet, among other things.

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

Oyster

Several diverse groups of salt-water bivalve molluscs that dwell in brackish or marine environments are collectively referred to as oysters by the general public. Some species’ valves are severely calcified, and many of them have an uneven form due to the calcification. Oysters are classified as members of the superfamily Ostreoidea, which includes many but not all of them. Raw or cooked, some varieties of oysters are popularly consumed across the world, and in some parts of the world, they are considered a delicacy. It is possible to harvest some species of pearl oysters for the pearl that develops within the mantle of the oyster. Windowpane oysters are collected for their translucent shells, which are then used to create a variety of ornamental items, including windowpane frames.

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

Animals that Start with O 2

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