I'm buying a dog, what do I need to buy for it?
user
That’s a great question.  You mentioned a dog -- I’m guessing you’re referring to canine animals that are bred to be companion animals.  I’ll explain the details of that.  Many dogs have been bred for their specific appearance and behavior -- there are dogs that are bred to be companions, to be guard dogs, to be watchdogs, to be hunting dogs.  In general I would suggest that the main thing you need to buy for any dog is food and water.  A dog usually also needs some sort of shelter to protect it from weather and predators.  Dogs also need exercise, so you might want to buy toys or other things that your dog will enjoy playing with.  Dogs are highly social animals, and love attention.  I think you should make sure your dog has lots of toys and opportunities to play with you and other people.  You can find more info about all of these things on any dog-related website.
assistant
I'm buying a dog, what do I need to buy for it?
user
That’s a great question.  You mentioned a dog -- I’m guessing you’re referring to canine animals that are bred to be companion animals.  I’ll explain the details of that.  Many dogs have been bred for their specific appearance and behavior -- there are dogs that are bred to be companions, to be guard dogs, to be watchdogs, to be hunting dogs.  In general I would suggest that the main thing you need to buy for any dog is food and water.  A dog usually also needs some sort of shelter to protect it from weather and predators.  Dogs also need exercise, so you might want to buy toys or other things that your dog will enjoy playing with.  Dogs are highly social animals, and love attention.  I think you should make sure your dog has lots of toys and opportunities to play with you and other people.  You can find more info about all of these things on any dog-related website.
assistant
I'm buying a dog, what do I need to buy for it?