How Do You Like Me Now!!
Masai Mara National Reserve
Kenya
East Africa
Reasons for the open mouth stance of Hippos -
Being such large, thick skinned animals they have to have a large gape and long 'tushes' to have any effect on a challenger. With their heads above water, the bulls frequently open their mouths wide as a show of dominance.
Whether intentionally or not this shows off their weaponry. The gape is certainly not used in the feeding process as they seldom, if ever, eat vegetation other than short grass and occasionally other plants. They lack cutting incisors and 'crop' the short vegetation with their broad, stiff lips.
Being communal animals, the adapted, forward facing 'tushlike' bottom incisors are sometimes used for 'poking' away others in the group to make space. The enlarged canines, which are very sharply honed top on bottom, are solely used as defensive weapons - the only weapons (apart from their bulk) that they have.
To bring these huge 'tushes' to effect they need to open their mouths wide. Although the females, with relatively smaller 'tushes', rarely become involved in territorial disputes they do have to be able to defend themselves (and will do so when necessary) and their young from large crocodiles and herd competition.
How Do You Like Me Now!!
Masai Mara National Reserve
Kenya
East Africa
Reasons for the open mouth stance of Hippos -
Being such large, thick skinned animals they have to have a large gape and long 'tushes' to have any effect on a challenger. With their heads above water, the bulls frequently open their mouths wide as a show of dominance.
Whether intentionally or not this shows off their weaponry. The gape is certainly not used in the feeding process as they seldom, if ever, eat vegetation other than short grass and occasionally other plants. They lack cutting incisors and 'crop' the short vegetation with their broad, stiff lips.
Being communal animals, the adapted, forward facing 'tushlike' bottom incisors are sometimes used for 'poking' away others in the group to make space. The enlarged canines, which are very sharply honed top on bottom, are solely used as defensive weapons - the only weapons (apart from their bulk) that they have.
To bring these huge 'tushes' to effect they need to open their mouths wide. Although the females, with relatively smaller 'tushes', rarely become involved in territorial disputes they do have to be able to defend themselves (and will do so when necessary) and their young from large crocodiles and herd competition.