Sea Urchin rockinaboxcelt This specimen is a fragment

This specimen is a fragment from a mission-flown payload liner of the Discovery

After careful review

one of the oldest relatives of the modern rhino

Labradorite is a glimmering mineral with a beautifully distinct shine

Measures 4 1/4" x 3 1/4" x 3/4" (10

Sea Urchin rockinaboxcelt This specimen is a fragmentAbove: 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