Uni Nigiri: What is it?
**Uni (also called Sea Urchin)
Rice
Sugar
Salt
Vinegar
Water
Wasabi
Soy Sauce

Where did at least one of its parts originate from?
Uni (also, Sea Urchin)

Their name came from a Greek word, echinodermata which translates to spiny skin.

Came from ocean floors and can thrive in hot and cold environments.

Some of their fossils date from 450 million year ago.

Historical Significance?

The edible part of the sea urchin is the interior, in specific, the gonads.

They are served mostly raw and are considered a delicacy.

When consumed, gives a response similar to the effects of cannabis because they both same the similar chemicals.

Has a good health benefit, a very good source of protein, and also aphrodisiac.

Gave lots of jobs to women who are known as “sea women,” and this allowed them more financial stability with their family.

"Everything You Need to Know About Uni." Food and Wine. https://www.foodandwine.com/seafood/everything-you-need-know-about-uni (accessed January 28, 2020). "Nutritive value of protein from sea urchin, and its effects on intestinal leucine aminopeptidase and intestinal and hepatic gamma-glutamyltranspeptidase." Pupmed. https://www.ncbi.nlm.nih.gov/pubmed/11400470 (accessed January 28, 2020). "Sea Urchin." New World Encyclopedia. https://www.newworldencyclopedia.org/entry/Sea_urchin (accessed January 28, 2020). "Sea Urchin." Wikipedia. https://en.wikipedia.org/wiki/Sea_urchin(accessed January 28, 2020). "Sea urchin is in demand. It's the ocean's foie gras: delicious, but not entirely ethical." The Guardian. https://www.theguardian.com/food/2018/oct/17/taste-of-uni-fresh-salty-opulent-edible-sea-urchin-demand-rising-uk-restaurants (accessed January 28, 2020.) "Sea Urchins: The Secret to Their Appeal and How to Prepare Them." Tried and Supplied. https://triedandsupplied.com/saucydressings/how-to-eat-sea-urchins/ (accessed January 28, 2020). "The Life and History of Sea Urchins." Leisure Pro. https://www.leisurepro.com/blog/explore-the-blue/the-life-and-history-of-sea-urchins/ (accessed January 28, 2020).