How can you compare Greyhounds and rabbits ? Greyhounds have been domesticated and selectively bred by humans for hundreds, if not thousands, of years; they have been bred for coursing and racing, and in racing have been bred to excell over different distances, such as sprinters and stayers. Rabbits are wild and subject only to natural selection,(of course I'm not talking about pet rabbits, just the ones we hunt,LOL !), So you can't use one as an example for the other ! Are rabbits faster, fitter or fatter in different parts of the country ? Quite possibly, but not to an extent that it should