From a Dustin Hoffman performance less witty than a stunned mollusc to the worst piece of garbage ever inflicted on TV viewers, here are Guardian readers’ most atrocious watching experiences ever

Ancient DNA reveals how the explosive expansion of Yamnaya steppe pastoralists began with a small community north of the Black Sea speaking ancestral Indo-European, and detects genetic links with Anatolian speakers, stemming from a common Indo-Anatolian homeland in the North Caucasus–lower Volga region.

The trials and tribulations of the world’s first seed bank reveal botanists’ enormous generosity and sacrifice during the siege of Leningrad.

Several species have vanished across swathes of the continent – and scientists say their disappearance holds unknown risks for humans