Nope, it's not because they're equally adorable.

DOGS
Clifford the Big Red Dog's size poses a lot of interesting issues for a pet owner—including how one would clean up after this ginormous canine, as no pooper scooper would be big enough.
Learn more about the so-called "lion dogs."
The tiny faux-fur dogs were "adopted" by millions of kids, thanks to the imagination of a Ford assembly line worker.
Your canine's mouth teems with microorganisms that we, as humans, aren’t designed to battle.
Your beloved pup is paying attention both to what you say and how you say it.
Meet the (cuddly) national dog of Peru.
Here's further evidence that the love between dogs and their owners is mutual.
After a long, snowy winter, it’s hard to resist the allure of warm summer days. Of course, they can come at a cost—including a sunburn. While it’s a well-known advisory for humans to slather on that SPF before taking in the rays, what about animals?