TikTok users have started probably one of the most touching challenges of all time, and it is dedicated to dogs. People have decided to show what their pets looked like when they were back in shelter and how they look today. The difference is so colossal it will make your heart melt from compassion for the little furry creatures hiding in the corner and at the same time from joy for them being so happy now. See for yourself!

1. Shelter picture vs. now

aajordn

The challenge was started by TikTok user Alexa. She showed her dog, and people joined her, recording their own videos with her sound laid on.

2. Almost 5 years difference

theladyshortcake

3. 3 years later

smokeythepyr

4. They look like two different dogs

journeyofpaws

5. A wonderful transformation

lexieodenbach

6. From shelter to forever home

arrowtotherescue

7. Smiley face

chaeann.somogyi

8. It almost looks like the dog is younger on the right

baileycake129

9. A very happy dog

dixie_reactiverescue

12. Pandora became Penny!

bg314

13. So glad Dobby came into my life!

my_dixy_wrecked

14. So much happiness!

sargrace

15. Cutie before and after but much healthier now!

dakota_the_pibble

16. Back in 2017 vs. now

rachmyrena

17. This fluffy ball is hard to recognize

ralph_the_fluffym

18. Walking skeleton to a beauty

wildlyrescued

Now, how did your pets change after adoption?