Boy - Oliver, Oscar
Girl - Olivia, Olive
Orang-utan is a type of rainforest animal that starts with an 'o' at the start of it's name.
Orca (aka killer whale)
Ostrage, Octopus, Otter, Orangutange, Owl
Omniscient, Omnipotent, Oppressive, Overwhelming, Orderly
Oscar and Oliver are 2
no.............................
O Henry
Ontario
Orangutan.
ozone
owen
Orbit
There is no animal that has a long o at the beginning.
Oscar
0bama
Ozzy Osbourne
Obsession