Hypsignathus monstrosus - hammer-headed fruit bat ::
Dipl. Biol. Njikoha M. Ebigbo ::
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Hypsignathus monstrosus This single species, otherwise called the hammer-headed fruit bat, is known for its large sexual dimorphism characterised by the large size differences, hammer shaped head, large convoluted lips and the well-developed voice organs in males. The hammer-headed bat is also well known for its courtship displays by males in leks. It is the largest flying fox in Africa.
