Pigments found in 1.1bn-year-old rocks beneath the Sahara desert shed light on ‘major puzzle’ about early life

Scientists have discovered what they say are the world’s oldest colours – and they are bright pink.

The pigments were discovered after researchers crushed 1.1bn-year-old rocks found in a marine shale deposit, beneath the Sahara desert, in the Taoudeni basin in Mauritania, west Africa.

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