| Clue | Animal | % Correct |
|---|---|---|
| Animal that says "hoot" | Owl | 99%
|
| Has eight tentacles | Octopus | 96%
|
| Orange-colored great ape | Orangutan | 94%
|
| Killer whale | Orca | 92%
|
| Largest bird | Ostrich | 88%
|
| Pearl-making animal | Oyster | 87%
|
| Cute aquatic mammal that uses stones to break shellfish | Otter | 73%
|
| Bovine that sometimes wears a yoke | Ox | 68%
|
| Marsupial that "plays dead" | Opossum | 59%
|
| New world cat that looks like a small jaguar | Ocelot | 56%
|
| Fish-eating bird of prey | Osprey | 51%
|
| Giraffe relative with zebra stripes | Okapi | 33%
|
| Bird with striking black and orange (or yellow) plumage | Oriole | 24%
|
| Long-lived fish. Famous example of overfishing | {Orange} Roughy | 19%
|