Actually it could theoretically have something to do with the Namekian Planetary Guardians attempting to create world inhabitants in their own images and creating similar but not perfectly alike creatures.
Edit: And also, you aren't thinking "realistically" you're thinking familiar. What is realistic for us of Earth may be outrageous for those of Kanto.
Edit: And also, you aren't thinking "realistically" you're thinking familiar. What is realistic for us of Earth may be outrageous for those of Kanto.
![[Image: Dexter.png]](https://2.bp.blogspot.com/-j0P8ahVIsu8/WP5ezdK2AGI/AAAAAAAAKCw/C51SdeXWCVEji7G6T9JzxwHVHhM0J6WEQCLcB/s1600/Dexter.png)
![[Image: Bubbles.png]](https://3.bp.blogspot.com/-KaYJ-Ee0Lao/WRAHKC0OInI/AAAAAAAAKDc/QJbAoif0S3o5QPJH2_3tnsdo2ze0-sRGACLcB/s320/Bubbles.png)
![[Image: SNWzHvA.png]](http://i.imgur.com/SNWzHvA.png)
![[Image: SamuraiJack2.png]](https://2.bp.blogspot.com/-qWSzvVsp7VY/WWHXUKkHpsI/AAAAAAAAKEI/z_Y7r157518BH7-WPcnVLBaxwmxRkOZ_ACLcBGAs/s1600/SamuraiJack2.png)
![[Image: kQzhJLF.png]](https://i.imgur.com/kQzhJLF.png)
![[Image: Pikachu.png]](https://1.bp.blogspot.com/-A4gzZ3oSym8/WqdiAR0Q53I/AAAAAAAAKG0/3RK3TfMBjyUBeG_0EfmOS8jT2yojVhzsACLcBGAs/s1600/Pikachu.png)
![[Image: tSCZnqw.png]](https://i.imgur.com/tSCZnqw.png)