Both Graham Hodgson and Boyd Williamson (Letters, 4 March) detected an apparent inconsistency between the immobilisation by clays of the DNA and amino acid precursors for life (18 February, p 7) and ...

Ancient clay tablets, once just records, now reveal personal connections through preserved fingerprints. Advanced imaging techniques allow detailed analysis of these ancient impressions, offering ...

My former McKinsey colleague Pulak Prasad writes that “media schadenfreude” surrounding the firm’s travails will pass (Letters, February 25). He may be right, but misses the point about the necessary ...