What you can see in this YouTube clip is very different from most of the underwater footage that you will come across online.

A painful and unexpected moment unfolds after getting pricked by a sea urchin while exploring the ocean.

Image courtesy of Fondemar. However, as time passed, the fishers realized that cutting the seaweed from the sea bottom would damage the red sea urchin, as the species lives in marine forests.

A sea-borne pandemic that wiped out sea urchin populations in the Red Sea has spread and is taking out the species in parts of the Indian Ocean and could go global, scientists in Israel say.

Browse 4,000+ sea urchin stock illustrations and vector graphics available royalty-free, or search for purple sea urchin or sea urchin food to find more great stock images and vector art.

A new study finds sea otters don't want the so-called “zombie urchins” living in barren spaces, preferring more nutrient-rich urchins living in kelp forests.

If you're wondering how you can pick up Purple Sea Urchin without hurting yourself, patience is key.

Controlling invasive sea urchins is expensive. Why not make it profitable by fishing for them and selling their roe as a delicacy?

Coral reefs in the Red Sea near Israel may be under threat as black sea urchins, a species critical to maintaining a healthy reef habitat, are dying off at an alarming rate.