If there's one thing animals can teach us humans, it's how to love someone else unconditionally — even if they don't happen to be in the same species as us!
Not only do our pets show their affection for us by rushing to greet us as soon as we get home from a long day, or cuddling up with us when we're feeling under the weather, but they have the incredible ability to form lifelong friendships with completely different animals.
Sometimes, they find a best buddy that we never saw coming, like the unusual pairings found below. Whether it's a domestic pooch forming a bond with a more wild animal or simply setting aside the old battle between cats and dogs, it's always amazing to see just how much these creatures can care for one another.
I honestly can't decide which of these twosomes makes me smile more! I'm just glad their owners decided to share all the cuteness with the rest of us, too.
Take a look to see if your favorite unexpected pals made the list. And don't forget to SHARE these sweet friends with your loved ones!
Thumbnail Sources: Flickr 1, 2, 3, 4, 5
1. Cat And Dog

The term might be "fighting like cats and dogs," but this duo loves getting up close and personal.
2. Cat And Bearded Dragon

Charles the lizard and Baby the cat really can't get enough of one another.
3. Cat And Llama

A farm cat is definitely used to being around other animals, but who knew she would take such a liking to a llama?
4. Dog And Goat

Farley the dog helped nurse this goat back to health, and now they are great friends!
5. Cat And Bear

This cat and bear cub are an adorable but unusual animal pairing.
6. Dog And Pig

This sweet pig is in hog heaven with his precious puppy bestie!
7. Warthog And Puppy

Piggy the warthog was orphaned as a tiny baby, but you'd never know it by how much fun he has with his pal Nikita.
8. Kangaroo And Wombat

Max the joey loves looking after his baby brother Digger at their sanctuary down under.
9. Mule And Goat

Luna loves taking rides with her rambunctious buddy Rapunzel.
10. Chicken And Pit Bull

Maggie is always ready for a snuggle session with her chicken partner in crime, Rosie.
11. Fox And Dog

In Juniper's eyes, she's just a regular dog like her adopted mommy, Moose.
12. Donkey And Goose

After both Bub and Goose lost their lifelong partners, they helped lift each others' spirits as constant companions.
13. Squirrel And Dog

When Compton fell through the ceiling of his rescuer's home, he also found friendship in their precious pooch.
14. Cat And Monkey

Horace the monkey never says no to being the big spoon with his favorite feline friend.
15. Cow And Pig

Lulu always helped Baby the blind cow find her way around the farm.
16. Dog And Genet

Candy the cocker spaniel instantly bonded with her adopted genet baby.
17. Dog And Plover

After Plucky lost her mom, Boof became her favorite place to perch and friend to share food with.
Be sure to SHARE all of these super cute faces with your best friend, and post any photos of your own precious pets in the comments!