Black and red design of a whale swimming under a large red sea urchin with large spikes extending from its body. Three white spots along whale's body and one on dorsal fin.

GLOUCESTER, Mass., Jan. 29, 2025 /PRNewswire/ -- The red sea urchin (Mesocentrotus franciscanus) is one of the earth's longest-living animals, reported to live more than 100 years without showing ...