A Hippopotamus bull 'yawns' in a behavioural display as a warning to others. After a day wallowing in the mud at Ikuu they prepare to move out


A Hippopotamus bull 'yawns' in a behavioural display as a warning to others. After a day wallowing in the mud at Ikuu they prepare to move out into the grasslands to graze during the night


Size: 5500px × 3667px
Location: Katavi National Park, Tanzania
Photo credit: © Nick Greaves / Alamy / Afripics
License: Licensed
Model Released: No

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