How do sea urchin look different when alive than dead?

Answer 1

When alive, sea urchins are covered in vibrant, spiny shells that can vary in color, including shades of purple, green, and red. Their spines are often long and moveable, giving them a dynamic appearance. In contrast, dead sea urchins typically have duller colors, and their spines may be broken or missing, revealing a bleached, often fragile shell beneath. Additionally, the lack of movement and any signs of life makes a dead sea urchin look significantly less vibrant and appealing.