| Hint | Answer | % Correct |
|---|---|---|
| The only mammal that can fly | Bat | 88%
|
| The only bird that can fly backwards | Hummingbird | 79%
|
| The only cat species that can't retract its claws | Cheetah | 61%
|
| The only bee species that may die after stinging | Honey bee | 45%
|
| The only animal that shows the white of its eyes | Humans | 42%
|
| The only insect that can turn its head | Praying mantis | 30%
|
| The only animal besides humans that can get leprosy | Armadillo | 21%
|
| The only bird species without wings (extinct) | Moa | 21%
|
| The only penguin species that lives in the northern hemisphere | Galapagos penguin | 15%
|
| The only great whale species that doesn't migrate | Bowhead whale | 12%
|
| The only bird species that is a foregut fermenter | Hoatzin | 12%
|
| The only shark that lives in freshwater | River shark | 9%
|
| The only parthenogenetic snake species | Brahminy blind snake | 6%
|
| Common garter snake | 6%
| |
| The only poisonous snake species | Japanese grass snake | 6%
|
| The only mammal that can see in UV light | Reindeer | 6%
|
| The only cephalopod that is iteroparous (doesn't die after mating) | Vampire squid | 6%
|