Hippopotamus. The hippo's large 'yawn' does not mean the hippo is tired, it is one of their most aggressive forms and shows confrontation in the water. Hippos spend most of their day in water deep enough to cover them because their thin, naked skin is vulnerable to overheating and dehydration, Okavango Delta, Botswana Africa.
Filename: Hippo-Africa013.tiff Copyright
Barry Boscoe @ 2007
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