well I might as well contribute but instead of making up something like the (booming voice) "mighty blaarghds" thats teh pwnz0rz ill contribute something thats a real modern myth.

I cant be bothered to write it myself so Ill copy and paste.
"sandgoose" (Countries in the Sahara Desert AFRICA): A rather amusing myth, I believe that the sandgoose may have a grain of truth to it. a flightles, goose-like bird said to live in the desert sands and to be completely unafraid of human beings. such a reaction would be expected of an animal which lives on a remote island and has no contact with people, not something in an area where any kind of animal is eaten. the myth goes on to say that the sandgoose can speak in the manner of a human, but I think this is probably due to some form of religious significance given to it by the natives of the region, which would explain it's fearlessness.