how would you describe the last mentioned fruit?
It is a plant species in the family Cucurbitaceae, a vine-like flowering plant originally domesticated in Africa.
Watermelon
Watermelon ("Citrullus lanatus") is a plant species in the family Cucurbitaceae, a vine-like flowering plant originally domesticated in Africa. 
where did the name black mamba come from The term "mamba" is derived from the Zulu word ""imamba"" what is this? It is a species of large, extremely venomous snake belonging to the family Elapidae where are they normally found? It is native to parts of sub-Saharan Africa. what colours are they found in? Specimens vary considerably in colour, including olive, yellowish-brown, khaki and gunmetal but are rarely black where is the above mentioned region? Sub-Saharan Africa is, geographically and ethnoculturally, the area of the continent of Africa that lies south of the Sahara. what kind of plants are grown here? Sorghum, castor beans, coffee, cotton okra, black-eyed peas, watermelon what is the census of people residing in this region? The UN predicts for the region a population between 2 and 2.5 billion by 2050 with a population density of 80 per km compared to 170 for Western Europe, 140 for Asia and 30 for the Americas. if bitten by the above mentioned creature, what should be done to treat the infection? Tetanus toxoid is sometimes administered, though the main treatment is the administration of the appropriate antivenom
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Watermelon [SEP] Introduction
Watermelon ("Citrullus lanatus") is a plant species in the family Cucurbitaceae, a vine-like flowering plant originally domesticated in Africa. It is a highly cultivated fruit worldwide, having more than 1,000 varieties. Watermelon is a scrambling and trailing vine in the flowering plant family Cucurbitaceae. There is evidence from seeds in Pharaoh tombs of watermelon cultivation in Ancient Egypt. Watermelon is grown in favorable climates from tropical to temperate regions worldwide for its large edible fruit, which is a berry with a hard rind and no internal divisions, and is botanically called a "pepo". The sweet, juicy flesh is usually deep red to pink, with many black seeds, although seedless varieties exist.