no there are not
Owls live in Arizona. They begin with O.
O can be Ox and N can be Netts
ostrich
Orangutan
orangutan
The oyster catcher (bird) and the orange leaf-nosed bat are animals in Australia. They begin with the letter o.
Octopus's live in Antarctica. :)
Google images
Oxen Orangutan Okapi (Antelope)
Overalls
orchid is one
O (Othello) (2001)