|Scientific Name||Diadema setosum|
|Time of Year||May to September 15th|
|Time of Day||All day|
The Sea Urchin is found in underwater in the ocean. Its shadow is small and it does not move.
The Sea Urchin can be donated to the museum. Upon doing so, the following text is given by Blathers:
"Sea Urchins are a close relative of both the starfish and sea cucumbers and are assumed to be stationary. In actuality, they are capable of walking thanks to the many skinny legs they have between their spikes. They feed on seaweed on the ocean floor using their strong mouths located on their undersides. They are rich in nutrients but also have a lot of cholesterol, so take care not to eat too much."
Upon catching the fish, the player will say the following:
"I got a sea urchin! And I didn't poke myself, either!"