A diver demonstrates the painful consequences of stepping on a sea urchin, revealing how its sharp spines penetrate the skin and the challenges of removing them. The video highlights the importance of ...

Diadema Savignyi A recent visitor came out of the sea with more than 400 sea urchin spines stuck in his body, according to marine biologist Dr. Terney Pradeep Kumara. In another incident, a foreigner ...

The answer lies in where these characteristically long, razor-thin (hence the name) fish are typically found: in the branches of corals, seagrass beds, and sea urchin spines. Swimming vertically ...

Beachcombers along the Texas coast were in for a treat this past week as numerous Sand Dollars washed up along the shoreline.

Sea urchins move across the sea floor using their spines. Each spine is attached to the test by muscle and the spine bases are articulated via a ball and socket joint. Walking is effected by ...

Katie Cresswell senior research fellow at IMAS with a long spine sea urchin. Katie has conducted research into the impact of commercial fishing of the long spine sea urchin population. Picture ...

The surface of heart urchin plates is covered in a mass of small tubercles marking the attachment sites for spines and pedicellariae. In the specimen illustrated tubercles are of various sizes, the ...