Find out what is it about puppies and kittens that makes the grumpiest of adults "ooh" and "aww" at the sight of them! As if you didn't already know...
Sometimes, it takes just one look to fall in love with a puppy or a kitten. Heck, fall in love with both! They're too cute not to coo over.
Check out these nine reasons why everybody goes crazy over puppies and kittens.1. They are adorable piled up for daily afternoon naps!

2. There's an awesome look of sheer wonder in their eyes.

3. They try so hard to focus, but sometimes a nap is needed.

4. When people hold puppies or kittens, the mother stays nearby. (Can you see her?)

5. They melt your heart snuggle after snuggle.

6. And the younguns are always so cute, dressed up for every photo shoot...

7. ...especially when they're dwarfed by the props involved...

8. ...or the little ones find their way into some tight spaces!

9. But the best part may be their fluffy, sweet-smelling fur, and how nice it is to hold them close.

We don't know anyone who doesn't love adorable puppies and kittens. Do you have photos of your own little ones?