How come when i take a picture on my iphone 6s it copies it and send it to my old iphone 4 how do i make it stop?

How come when i take a picture on my iphone 6s it copies it and send it to my old iphone 4 how do i make it stop?

Read more: How come when i take a picture on my iphone 6s it copies it and send it to my old iphone 4 how do i make it stop?