Science authority in US: mermaids aren't real

According to an official authority in the United States, mermaids are not real. 'Mermaids are creatures which appear in many 'old' books in the Western world, especially fairy tales for kids. Creatures with half-human and half-animal physical features also appear in some ancient books for all age groups in some non-Western societies. However, it is hard to deny that dinosaurs existed before 'as fossils are available. No fossil of human'-like creature with two wings has ever been found.