Sea Urchin (Franchise)

Sea Urchin, also called Sea Hedgehog, is an aquatic animal that makes small appearances in How to Train Your Dragon (Franchise).

Description
Sea Urchins are animals of the class Echinoidea. They are the cousins of the Starfish and Sea cucumbers.

The urchin is covered in a spiky shell, similar to the hedgehog spines. They have many colors, including black, purple, brown, red or blue.

Function
While there is no function for the sea urchins in the franchise, they have many in the real life.

They are mostly used as food in many countries such as Italy, Japan, New Zealand and California. They are also kept in aquariums as ornaments or for scientific purposes.

School of Dragons
The sea urchins are briefly mentioned in the quest Gross Cool Things in which Ruffnut and Tuffnut talk about some aquatic wild life including the urchins.