List of Animals Starting with O
- Oarfish
- Ocellaris Clownfish
- Ocelot
- Octopus
- Oilbird
- Okapi
- Old English Sheepdog
- Olive Ridley Sea Turtle
- Olm
- Opossum
- Orangutan
- Orb Weaver
- Orca
- Oriole
- Ornate Chorus Frog
- Ornate Hawk-Eagle
- Oryx
- Osprey
- Ostrich
- Otter
- Owl
- Owl Butterfly
- Ox
- Oyster
- Oystercatcher
Animals that Start with O | Interesting Facts & Pictures
Oarfish
The world’s longest bony fish that eats tiny plankton.
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Ocellaris Clownfish
Clownfish are born male, but they have the ability to turn into a female. This fish is found in reefs and lagoons near Australia and Southeast Asia.
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Ocelot
A wild cat that is found in the forests of South America and southern North America. This creature hunts small mammals, birds, and reptiles.
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Octopus
They have three hearts and blue blood. Since they have no bones, they can squeeze into tight spaces.
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Oilbird
This bird uses echolocation to find its way within the caves where it roosts and nests from Trinidad/Guyana to Bolivia.
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Okapi
These creatures belong to the giraffe family. Their tongue is long enough to clean its eyes and ears.
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Old English Sheepdog
When this dog breed first came to the United States, it was a common pet for a wealthy person.
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Olive Ridley Sea Turtle
Able to sleep underwater for two hours before coming up for air.
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Olm
This aquatic salamander has translucent skin.
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Opossum
Due to their low body temperature and immune systems, it’s rare for one to carry rabies.
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Orangutan
The two species of orangutans are critically endangered due to deforestation. These apes eat fruit, live in trees, and are native to Indonesia and Malaysia.
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Orb Weaver
There are over 3,000 species of these spiders, being the third-largest spider family.
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Orca
They are also known as the killer whale, and they’re the largest member of the oceanic dolphin family. They are apex predators, which means they’re at the top of the food chain.
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Oriole
Unlike many other insect-eating birds, orioles eat spiny or hairy caterpillars.
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Ornate Chorus Frog
This small frog is found in the southeast United States and in pine woodlands.
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Ornate Hawk-Eagle
This brown and white eagle has a large crest which is raised when the bird gets excited.
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Oryx
A very large antelope that can weigh anywhere from 220 to 450 pounds.
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Osprey
This bird is found in the Americas, Europe, Africa, Asia, and Australia.
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Ostrich
The world’s biggest bird and the fastest bird on land. They can run at 43 mph.
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Otter
Sea otters have the thickest fur of any animal.
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Owl
They can rotate their necks 270 degrees.
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Owl Butterfly
These butterflies get their name from the owl-like eye markings on the undersides of their wings. They’re found in Central and South American rainforests.
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Ox
People have depended on these strong animals to do work for about 6,000 years.
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Oyster
Their shells are made of two parts with a hinge along one end. Different oysters produce different things, such as being edible food or producing pearls.
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Oystercatcher
A large wading bird found on the coasts of Europe, Asia, and North Africa. These birds don’t typically eat oysters, instead, they eat cockles, mussels, and worms.
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Animals Starting with O | Image
Beautiful Animals that Start with O
