A shrill, hoarse scream of anguish, it sounds more than anything like a human baby undergoing ... What sound does the deer make? Hell if I know. Another reason might be that fox noises are easily ...

The Fox' by Norwegian duo Ylvis helpfully informed people that dogs woof, cats meow and birds tweet - but "What does the fox say ... The "ha ha" sounds they make closely mimic human laughter.

Dogs bark. Mice squeak. Cats meow. But it's worth wondering. What sound does a fox make? The video, an electronic spoof, features backup dancers dressed as animals, and a forlorn-looking lead ...