so wat?

When mosquitoes consume and process blood meals, they must urinate to prevent fluid and salt overloads that can kill them. Also, "they have to undergo rapid urination when feeding, or they can't fly away," said Peter Piermarini. "Too much weight will impair the mosquito's flight performance, like an aircraft with too much payload. [If they get too heavy,] they may become more susceptible to being swatted by their host or eaten by a predator," said Piermarini.