Wallpaper Wednesdays: Underwater Fireworks
Over 1,000 species of sea urchins decorate the sea floor with their varying colors, sizes, shapes—and spines!
- Multimedia •
- Animals
Ring in the new year with our one-of-a-kind wallpaper featuring an up-close look at this black long-spined sea urchin.
Mobile & Desktop Devices Coral Reef Cleaners
Urchins have mouth parts called an Aristotle's lantern that consist of five tooth-like structures. Urchins help protect coral reefs by grazing on excess algae that can limit coral growth.