Pets that require the most attention are usually ones that need regular interaction, exercise, grooming, and mental stimulation. Some examples of pets that typically require a lot of attention include dogs, especially breeds that are highly intelligent or have high energy levels (such as Border Collies or Australian Shepherds), certain bird species like parrots, and some exotic pets like sugar gliders or hedgehogs. Ultimately, the amount of attention a pet requires can vary depending on the species, breed, and individual needs of the animal.