Reconstructing Kimberella — The Disputed Anatomy in Detail

burial, Calvapilosa, Cambrian News, creeping ventral locomotory organ, digestive system, dorsum, Ediacaran organisms, Evolution, feeding apparatus, feeding tracks, foot, fossils, hydrostatics, Kimberella, Kimberella series, mantle, Mikhail Fedonkin, mollusks, monoplacophorans, muscles, Ordovician Period, Parvancorina, proboscis, sclerotic teeth, shells, teeth
Fossils often leave much room for very different interpretations of relatively poor evidence. Source
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In Praise of Copper, a Gift from Nature

Alfred Russell Wallace, aluminum, ambient temperatures, conductors, copper, corrosion, crustal rocks, ductility, Earth’s crust, electrical devices, fire, Fire-Maker series, fitness, fortuity, gold, Intelligent Design, iron, lead, machinery, mantle, metallurgy, metals, rocks, silver, steam engine, Stone Age
If the conductivity of copper were ten times less, wires would have to be ten times the cross-sectional area to provide the same conductivity. Source
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