The race to find out what killed hundreds of pink dolphins in the Amazon – in pictures
Scientists are trying to establish whether global heating caused the deaths of the rare river dolphins last year, before temperatures start to rise again
Afriski, Lesotho’s ski resort – in pictures
Lesotho’s Afriski ski resort, with its three small artificial-snow slopes surrounded by the remote brown mountains of a country in drought, draws visitors from the continent and beyond
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