Dogs grow up so fast and in just a few months, a puppy can become completely unrecognizable. As a pet owner, you probably won’t realize just how much they’ve changed until you see some then and now photos.

At a glance, the changes dogs go through because of growth spurts and fur transformations can seem striking. But when you look closely at side-by-side comparisons you can see that some things never change. Your dog will always have the same goofy expressions and unique markings that made you fall in love with them when they were a puppy.

Here are 21 adorable pictures of dogs growing up with their owners to give you some perspective of the changes our four-legged best friends go through. Please share your own then and now pictures in the comments!

1. Seven months apart

Image via Jennifer610

2.

Image via ASAROCKS

3.

Image via wojtek9000

4.

Image via doublej25

5.

Image via BraveSirWobin

6.

Image via Imgur

7.

Image via christophermm

8.

Image via Lerchasaurus

9. One year apart

Image via Imgur

10. Four years apart

Image via GrimSleaper

11.

Image via Imgur

12.

Image via singhsamantha

13.

Image via ryukandl

14. Eight months apart

Image via shubonid

15.

Image via Imgur

16.

Image via Imgur

17.

Image via CuteOverload

18. Two years apart

Image via Smiffy86

19.

Image via justinmillerco

20.

Image via Quinnsmom16

21. Ten years apart

Image via AlmaGordo

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