"Humans consume sea urchin ("roe") either raw or briefly cooked. Sea urchin "roe" is not actually roe, but rather the organs that produce the roe (the gonads). Five strips of roe reside within the structure of the urchin, a yellowish or orange substance resembling a rather firm custard. Sea urchin roe is a popular food in Korean cuisine, and it is called "uni" in Japanese sushi cuisine. It is a traditional food in Chile, where it is known as an "erizo". Sea urchins are highly appreciated in Spain, Greece where they are known as "achinos"-(αχινός), and also in Italy where they are known as "ricci di mare". Apart from domestic consumption, Chile and a number of other countries export the sea urchin to Japan in order to meet its demand throughout the country. Traditionally considered an aphrodisiac, sea urchin "roe" has been found to contain the cannabinoid anandamide"
I only knew Japan, France, Monaco and Italy consume sea urchin where I tasted it previously. I would love to taste it in Spain and Greece!