The spinelets on this urchin can sting. This month I am featuring two urchins. I am always surprised when I come upon a reef that is covered in urchins. They are such peculiar creatures that spend most of their life in the exact same spot every day just eating the algae that is close enough […]

The red spines are typical to these urchins in Hawaii When I went underwater for my first snorkel in Hawaii, I was almost immediately met by the oddest-looking urchin that I had ever seen. After some research I found out that I was seeing my first Indo-Pacific endemic urchin, the Red Pencil Urchin; a.k.a. slate […]