Shop the collection of ceramic mugs, cups, steins, vases, trays, wall art, and other handmade pottery made in Kennett Square, PA.

Foraminifera: Cribrohantkenina inflata. The chemistry of these foram shells can tell us how ocean temperatures changed through time by measuring the amount of magnesium in the shells - Forams take elements from the ocean into their shells, using more magnesium at warmer temperatures. Image: Paul Pearson, Cardiff University. Discover more of these remarkable images on the Up Close With Nature online gallery on 'Rhagor', the collections based website from Amgueddfa Cymru - National Museum Wales. View On Black