Animals That Start with O

Explore 63 verified animals starting with O, from Owl, Oyster, Octopus, Otter, Ostrich, Orca and Opossum. Select any entry from these animal names and wildlife species below to view definitions and photos, or browse our main animals directory.

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oarfish
oasis snake
octopus
ocelot
ocean sunfish
ocellaris clownfish
oceanic whitetip shark
ocellated carpet viper
odessa barb
oenpelli python
oilbird
oilfish
okapi
okinawa habu
olifants
olm
olive ridley sea turtle
olingo
olive baboon
olive python
olive sea snake
onager
opossum
opah
opaleye
orca
oriole
orangutan
oryx
orange roughy
ortolan
oribi
oropendola
oranda goldfish
ornate box turtle
ornate flying snake
ornate monitor
ornate tree snake
oriental rat snake
orinoco crocodile
ornate bichir
orthonyx
ornate brown snake
orlov viper
oscar
ostrich
osprey
ostracod
oscar fish
osage copperhead
osteoglossum
osmerid
otter
otocinclus
ouzel
oviraptor
ovenbird
owl
owlet
ox
oxpecker
oyster
oystercatcher
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