Ever-Sharp Urchin Teeth May Yield Tools That Never Need Honing
These include microscopy methods that depend on X-rays to illuminate how nanocrystals are arranged in teeth to make the sea urchins capable of grinding rock. Gilbert and her colleagues used these techniques to deduce how the crystals are organized and ...
Geology | OSU researchers found color in fossil ‘sea lilies’
Also known as sea lilies, their flowerlike appearance can be stunning. Crinoids are echinoderms and are related to starfish, brittle stars and sea urchins (including ... Broad St.Bring in your rocks, minerals, fossils and gems for identification.