Those using the phrase ‘as graceful as a hippo’ has clearly never come across this particular member of the species.
This hippopotamus was seen enjoying what closely resembled an unintentional one-man synchronised swimming performance.
Using a combination of splashing, turning and stretching one leg out of the water it appeared to have mastered the art of water dancing.
Ms Gibson, 71, said: ‘I was watching the birds fishing near the hippo when it suddenly dipped its face into the water and started splashing and shaking about.
‘It then went deeper into the dam and rolled onto its back – it was just having some fun or even performing some kind of ritual.
‘The splashing and rolling around lasted no longer than ten minutes, but I have not witnessed a performance like this before!’