Male dogs are often quite independent and can be a little more difficult to train and control. Males also tend to wander and fight other dogs. Female dogs are more popular as family pets and may cost a little more. By nature females are affectionate and companionable, but unless desexed, will attract male dogs when in season and may reproduce every six months.
Puppy Roundworms can infect humans. To prevent this infection, puppies should be wormed regularly throughout their first year of life, and owners should be thorough with their own personal hygiene after having interacted with the dog. Tapeworms, Hookworms, and Whipworms can also infect dogs, and your veterinary surgeon can advise when to worm the dog.