Fruit flies have the longest sperm in the world

Drosophila, the really small flies better known as ‘fruit flies’ are known to have the longest sperm cells in the world. Although the fly itself is only 2-4 millimeters long, the sperm cells are 58mm (2.3in) long! This is over 1250 times as large as the human sperm cell, which measures only 0.046mm.

Source: Wikipedia Drosophila, Wikipedia Spermatozoon

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