Although it sounds strange, the seals are the marine equivalent of the dogs. Being canine, seals share many characteristics with the dogs as because both of these animals happen to be a member of the Carnivorans group. In view of this genetic resemblance the seals are often called the dogs of the oceans and their many features also indicate towards that.
This page includes fifteen pictures of seals and dogs doing same things, compiled by Bored Panda. You would definitely accept seals as ocean puppies once you scroll down the page to delight your eyes. via boredpanda