Purple sea urchin images

Colorful sea urchins clustered on a rocky reef underwater, with sunlight filtering through clear blue ocean water above.

Colorful purple and orange sea urchins clustered on a rocky ocean floor with sunlight filtering through clear blue water above.

Purple sea urchin on vibrant coral reef with tropical fish swimming in crystal clear blue water showcasing marine biodiversity and underwater ecosystem.

Purple sea urchin with spiny shell resting on rocky coastline during golden hour with ocean waves and seaweed in background for marine biology education.