• Mark's feature about pink river dolphins – with exclusive photos – was published in BBC Wildlife magazine
  
  
• Mark summarised the Yangtze river dolphin's sad demise in New Scientist and BBC Focus magazine. There are very few photos of this now extinct dolphin – to see some of Mark's, click here
  
  
• Eye Contact A permanent, outdoor photographic exhibition at Bristol Zoo by Mark and fellow photographer Malcolm Schuyl – images of 40 or so charismatic animals – many of which are endangered.
  
  

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