If animals could use social media, I imagine it would be filled with a delightful mix of the following:

1. Pet Selfies: Cats trying to take selfies with their whiskers covering half the frame, and dogs with tongues out and eyes wide open.
2. Foodie Pics: Birds showing off their latest catch or squirrels posing with a nut stash.
3. Travel Adventures: Turtles documenting their slow but steady journey across the backyard, or a rabbit exploring a new patch of grass.
4. Fashion Faux Pas: Dogs wearing mismatched socks or cats in tiny hats.
5. Fitness Routines: Hilarious videos of animals attempting (and sometimes failing) to do tricks or exercises.
6. Sleepy Shenanigans: Animals caught mid-nap in the most awkward positions possible.
7. Dramatic Reenactments: Hamsters staging epic battles over a piece of lettuce.
8. Wildlife Self-Help: Wise owls giving advice on how to hunt at night, or monkeys sharing tips on how to steal bananas.
9. Meme Culture: Memes featuring surprised prairie dogs or judgmental-looking owls.
10. Pet Influencers: Cats with millions of followers, showing off their luxurious lifestyles of napping and treats.

Overall, the animal kingdom on social media would likely be a delightful blend of humor, cuteness, and unexpected moments from the natural world.