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Bom Jesus was more than 100 elephant tusks – the largest archaeological cargo of African ivory ever discovered.  Tusks from the Bom Jesus Shipwreck Cargo (Image from “Sourcing Elephant Ivory from a Sixteenth-Century Portuguese Shipwreck” published in Current Biology) Their analysis has managed to pinpoint the origin of the ivory and tell a sad story of forest elephants assumed but never before documented in such precise detail. The finding makes it clear that ivory may have pre-dated European trans-Atlantic slavery as a central driver in maritime trading systems connecting Europe, Afri...

Hugh Cott (Image WikiCommons) Cotts measuring a crocodile (Image WikiCommons) He then travelled South America and Africa, becoming fascinated by Nile crocodiles. But what’s really interesting is his abiding obsession with how not to be seen. This led him to develop the ground rules for camouflage. The word probably comes from camouflet, a French term meaning “smoke blown in someone’s face as a practical joke”. Although in the natural world camouflage is no joke but a matter of survival. Its dictionary definition is “a set of methods of concealment that allows otherwise visible objec...