Angry Hippo

An angry bull hippo (Hippopotamus amphibius) exiled from the pond with the females by younger, stronger bulls, makes threatening gestures to signal his discontent. His aquatic ecosystem, in the Okavango River in Botswana, had been under threat by the aquatic alien invasive plant species, salvinia (Salvinia molesta Mitchell} since the 1970s. With continuous and sustained liberation of the host-specific biological control weevil (Cyrtobagous salviniae) between 1999 and 2000, salvinia control was achieved by 2003, and since then the weevil constantly keeps the weed at low levels.

Technical Details

Composite: No
EF 70-200mm + 2x @ 400mm; Fujichrome Velvia 100


Great action shot. Thank you for the education.

Thank you, Jim. I realize most people will never have an opportunity to encounter what I have, over the years. I make an effort, when it is not intuitively obvious, to help them understand the what, when, where, why and how I made any image. As a former zoologist I have a different perspective on life.