the short-legged ancon sheep is descended from a mutant ram discovered in dover, massachusetts in 1791. why did this mutation become established?
a) short legs were useful in the sheep outrun predators.
b) short-legged sheep are more attractive to their mates and more likely to breed.
c) the ancon sheep was bred by humans because ranchers did not need to build high fences to contain it.
d) the ancon sheep was better adapted at catching its prey and living in the wild than normal sheep were, so it’s a case of survival of the fittest.