| Hint | Answer | % Correct |
|---|---|---|
| These echinoderms are best known for being completely covered in spines. | Urchin | 100%
|
| This fish has a protrusion on its head that looks like it has a nose, hence why it is named after a particular mythical horned-creature. | Unicornfish | 88%
|
| A species of octopus that gets its name in reference to the web of skin between its arms. | Umbrella Octopus | 38%
|
| Its name is the Amazon word for "toad". It's a small genus of cichlids with a large black spot on its body. | Uaru | 0%
|
| A fish found in Kenya and Uganda (and possibly Tanzania) that is small in size and varies in color. | Uganda Nothobranch | 0%
|
| Also referred to as fiddler crabs, males of this species have one claw much larger than the other. | Uka Crab | 0%
|
| It is nearly invisible in the deep sea. This is useful for hiding its vulnerable body from predators. | Umbrella Comb Jellyfish | 0%
|
| It feeds on sponges, and appears as if it has a lid on them. They can use alkaloids and pigments from the sponges they feed on. | Umbrella Slug | 0%
|
| A mostly whitish fish that is native to western North America. Anglers have tried eradication programs as they found it a nuisance, but populations always rose back. | Utah Chub | 0%
|
| Also called bladderworts, these carnivorous plants can grow on fresh water. It can trap its prey 100 times faster than a venus flytrap. | Uticularia | 0%
|