Sumatran tigers fall 17 per cent and have just two strongholds
5 December 2017
There are now only two viable populations of Sumatran tigers left in the wild, so if the cats are to be saved those areas have to be protected
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Premium
Baby pterosaurs were cute, defenceless and unable to fly
30 November 2017
Over 200 pterosaur eggs have been found at a site in China, the largest such discovery on record, and the embryos inside reveal what newly-hatched pterosaurs were like
Wiping out a population of animals might help the species
22 August 2017
Mass deaths might not be all bad, because local die-offs could help to ensure the survival of the species as a whole
