Facts: The Sea Urchin

Here's the sea urchin 101. Everything you need to know about these spiky echinoderms. Sea urchins (Echinoidea, regular urchins, porcupines of the sea). Sea urchin facts! They are even featured in Animal Crossing.

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References and Helpful Links

Sea Urchins: Biology and Ecology. Netherlands, Elsevier Science, 2013.

Rustad, Martha E. H.. Sea Urchins. United States, Bellwether Media, 2010.

Hawai'i's Sea Creatures: A Guide to Hawai'i's Marine Invertebrates. United States, Mutual Pub., 1998.
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Images Licensed Under Creative Commons

Videos Licensed Under Creative Commons/Public Domain

[alessioleporati]

Fun fact: Both California and Japan have Sea Urchins that are popular for sushi. However the sea urchins in California are sweet and the ones in Japan are salty and Californians typically prefer salty food and Japanese hate salty food so they don’t eat their respected urchins. Instead they trade their urchins with one another through imports and export driving up the cost of sea urchins.

[TheeRyanBrice]

I found myself here because of a TikTok video of some diver capturing a bunch of urchins off the bottom of the seas floor then feeding the local fish the urchins lol

[mydogsbutler]

As a kid, I once stepped on a sea urchin while walking in shallow waters a hundred meters in.. At first it was a tiny pinprick so I didn't think anything of it. Then minute by minute the pain increased. And it spread beyond the point of toxin injection. So I started walking to the shore to see if I could get some help. By the time I reached the shore I was in extreme pain. My foot and leg had also started to swell up. Fortunately I was with an uncle who was doctor. He immediately took me to the local hospital and they game me some sort of injection. Foot was out of commission for a day or so. n same vacation I later brushed up on a jellyfish. Almost the same experience all over again. Slight pain, then excruciating spreding pain and swelling. Trip to the hospital. What a vacation lol

[richardhaiku]

Mentioned in Terry Pratchetts book The Shepperd's Crown and realised I didn't know much about this creature, thank you very much for such an informative video :)

[Friendroid]

Found 4 yesterday at the beach, 1 dead and dried from which i kept the exoskeleton. Love your channel, thanks!

[Garl_Vinland]

Finally, a sea urchin video not showing it being dismember-shit!

[miketeabag]

Sea urchin: How do you know where my face is?
Octopus: I can sea ur chin

[mcaelm]

Something about your "for more marine facts, click the subscribe button" outro sounds very satisfying to me

[annajuliacarneirodebarrosc]

Oh, what a amazing marine video! I were not know that the sea urchin have so many stuffs. I love it !

[anxietyebriety]

*shows beautiful creatures living, eating, existing*

*then ends on its head splattered wide open*

[Shandchem]

A real pleasure to listen to all of your fascinating videos. Amazing, that sea urchins, heart urchins and sand dollars have existed in the oceans for millions of years. Always a joy to see, sea urchins, spaced out over rocky seabeds and underwater cliffs.

[koreanature]

Wow... !!! My best friend, Great... We liked and enjoyed to the end. Thanks Have a happy day!

[avalosfamily]

Wow, that video was cool! I think I want to watch it again, and again, and again...

[storytimewithunclebill]

Such a cool animal. Got a new subscriber. Was informative and fun to watch. Great video

[THATHOMIEwiththeBIGFEET]

Yo seriously I love your videos. Thank you so much for making these.

[electricdreamer]

plot twist: they came from outer space.

[praveennr]

ARISTOTLE BE LIKE : NO ! I DIDN'T HAVE A LANTERN LIKE THIS 👀
THE LANTERN WHICH HE HAD : HEY.... DON'T YOU REMEMBER ME ? I'M YOUR LANTERN
SEA URCHIN : NO IT'S ME !!!!

[FireMonkeyX]

My dad accidentally stepped on a sea urchin a long time ago when we went to the beach. He had spines imbedded into his foot which had to be removed. Also, sea urchins are my spirit animal.

[iJustB]

Didn’t know these even existed until today. And 98% of the ocean is unexplored 💀

[xylopiano]

I didn't know that sea urchins had tube feet! I knew that they're related to sea stars, which also have tube feet, but I guess I thought urchins only moved with their spines.