The cowpea (Vigna unguiculata) is one of several species of the widely cultivated genus Vigna.Four subspecies are recognised, of which three are cultivated (more exist, including V. textilis, V. pubescens, and V. sinensis):ccording to the USDA food database, the leaves of the cowpea plant have the highest percentage of calories from protein among vegetarian foods.
1 Victoria Falls - 108 m (354 ft) high; widest in Africa and one of the widest in the world.  Mutarazi Falls - 762 m (2,500 ft) high; highest in Zimbabwe, second highest in Africa and 17th highest in the world.
Angel Falls is the highest waterfall in the world, at 1,002 m, and is located in the Canaima National Park in Bolivar State, along Venezuelaâs border with Brazil. It is more than 19 times higher than Niagara Falls. The uninterrupted descent of water falls 807 m.