Sea Urchin lunarhighlands Above: Front of the Specimen

Above: Front of the Specimen Card

Walter Alvarez

and also gives the glass its protective qualities

the City of Masks

this specimen is a fragment of one of those bricks that first experienced the sound of the Beatles

Sea Urchin lunarhighlands Above: Front of the SpecimenAbove: 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