Sea Urchin chemistry As a cost-saving measure

As a cost-saving measure

Egyptian artisans began working with it the following millennium

Average weight is roughly 0

is estimated to have had an area of half a mile

Sea Urchin chemistry As a cost-saving measureAbove: Front of the Specimen Card Ancient sea urchins, small and spiny creatures, have existed for millennia. These echinoids first appeared in oceans 450 million years ago, where they fed on algae and sponges. Their flexible spines purpose was two fold: to protect against predators and allow for the slow crawl towards the urchins next meal. Buried for millions of years, their fossils appear in many places where those oceans once were and have