Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic on depression, answers on the death of Russian opposition leader Alexei Navalny, and an explanation to the mystery of why humans have chins
Овечкин продлил безголевую серию в составе Вашингтона09:40
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Australia GP — Oct. 25
Photograph: Simon Hill