Sand dollars
Remains from the intertidal zone of burrowing sea urchins - the Sea of Cortez. Sand dollars are echinoids that live on the ocean floor.
- San Felipe, Baja (Mexico)
Info: Living sand dollars are more purple in color and covered in tiny flexible bristles. When they die, their skeletons get bleached by the sun, turning them white, and the small spines fade away. > www.mnn.com/earth-matters/animals/stories/things-you-dont...
Sand dollars
Remains from the intertidal zone of burrowing sea urchins - the Sea of Cortez. Sand dollars are echinoids that live on the ocean floor.
- San Felipe, Baja (Mexico)
Info: Living sand dollars are more purple in color and covered in tiny flexible bristles. When they die, their skeletons get bleached by the sun, turning them white, and the small spines fade away. > www.mnn.com/earth-matters/animals/stories/things-you-dont...