Over 100,000 different species of flies exist.¹⁾

Fly species include horseflies and mosquitoes. These fly species' females consume blood.²⁾

More diseases are carried by urban flies than by those in rural settings.³⁾

At least 65 dangerous illnesses, including cholera, leprosy, dysentery, yaws, stomach ulcers, and typhoid fever, can be spread by houseflies.⁴⁾

The housefly and blowfly collectively transport more than 600 distinct bacterial species. 351 different bacterial species are carried by houseflies. About 316 are carried by the blowfly.⁵⁾

A fly will vomit if it lands on food, such as your meal. To enable the fly to suck up the meal, the vomit's acids disintegrate it.⁶⁾

Certain types of flies, including screw flies and botflies, may deposit their eggs in intact skin. The eggs grow up until a fully developed fly emerges from the host's skin.⁷⁾

Across 125,000 different types of dipteran, or “real” flies, may be found all over the planet, even in the subarctic and high mountains.⁸⁾

Gnats, midges, mosquitoes, leaf miners, horseflies, houseflies, blowflies, bee flies, and robber flies are all included under the term “fly”⁹⁾.