A video of two Galapagos tortoises mating ('imagine one sack of coal trying to climb onto the back of another sack of coal') is one of nine exhibits at the Baltic, Gateshead, that convinces art critic Waldemar Januszczak that art can bring something to the Darwin celebrations ('a mood, not a calculation; a spirit, not a result') that eludes science.
Ancient Peruvian civilisation grew mighty by harvesting guano
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The Chincha Kingdom was transporting seabird excrement from islands to
valleys as early as the 13th century, and this powerful fertiliser may have
been key...
4 hours ago
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