Buck: the real-life horse whisperer

He can rope a cow in a snowstorm and perform a caesarean with a penknife. Buck Brannaman tells Catherine Shoard why city folk are galloping to see his new documentary

Academic publishing doesn’t add up

The world of university research has long been held to ransom by academic publishers charging exorbitant prices for subscriptions – but that may all be about to end, writes John Naughton

AI robot: how machine intelligence is evolving

No computer can yet pass the 'Turing test' and be taken as human. But, says Marcus du Sautoy, the hunt for artificial intelligence is moving in a different, exciting direction that involves creativity, language – and even jazz