A territorial Hippo bull makes a huge gaping yawn as a warning to other males to keep out of his territory. They will also make this threat to humans.
A territorial Hippo bull makes a huge gaping yawn as a warning to other males to keep out of his territory. They will also make this threat gesture to humans on the riverbank.
Size: 4548px × 4000px
Location: Ruaha National Park, Tanzania
Photo credit: © Nick Greaves / Alamy / Afripics
License: Licensed
Model Released: No
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