Meet Sapo our male pygmy hippo calf at ZSL Whipsnade Zoo. The hugely cute calf, now three months old, is an important addition to the European Endangered Species Programme and for the conservation of this species on ZSL's EDGE programme -- a global conservation programme dedicated to threatened animal species which have unique evolutionary history -- pygmy hippos are endangered and in the wild their numbers have dwindled to less than 3,000.
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