Beasts of prey are solitary in their habits—the gentle and useful domestic animals are gregarious and social.
By studying domestic animals, see what you can learn about heredity.
I suppose you are well aware that cattle, poultry, and other domestic animals are required to be kept under proper control.
Different species and/or subspecies described have been differentiated by analysing adult worms and eggs from domestic animal hosts.
Still, because domestic animal keeping is widespread, it is of interest to investigate the impact of this activity as well.
All domestic animal and gull isolates were identical with both methods.
