Watermelon (Citrullus lanatus) is a flowering plant species of the Cucurbitaceae family and the name of its edible fruit. A scrambling and trailing vine-like plant, it was originally domesticated in Africa. It is a highly cultivated fruit worldwide, with more than 1,000 varieties. Wild watermelon seeds have been found in the prehistoric Libyan site of Uan Muhuggiag. There is also evidence from seeds in Pharaoh's tombs of watermelon cultivation in Ancient Egypt. Watermelon is grown in favorable climates from tropical to temperate regions worldwide for its large edible fruit. It 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. The fruit can be eaten raw or pickled, and the rind is edible after cooking. It may also be consumed as a juice or as an ingredient in mixed beverages. The large fruit is a kind of modified berry called a pepo with a thick rind (exocarp) and fleshy center (mesocarp and endocarp). Wild plants have fruits up to 20 cm in diameter, while cultivated varieties may exceed 60 cm. The fruit's rind is mid-to dark green and usually mottled or striped, and the flesh, containing numerous pips spread throughout the inside, can be red or pink (most commonly), orange, yellow, green, or green white.
 

Fruits III

In botany, a fruit is a seed-bearing structure in flowering plants formed from the ovary after flowering.

Fruits are how flowering plants disseminate their seeds. Edible fruits, in particular, have long propagated using the movements of humans and animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; in fact, humans and many animals have become dependent on fruits as a source of food.