01. Affenpinscher
 
Dogs have been selectively bred for thousands of years, sometimes by inbreeding dogs from the same ancestral lines, sometimes by mixing dogs from very different lines. he process continues today, resulting in a wide variety of breeds, hybrids and types of dogs.
02. Afghan Hound
 
03. Africanis
  
04. Airedale Terrier
 
05. Akita Inu
 
06. American Akita
 
07. Australian Terrier
 
08. American Bulldog
 
09. Australian Kelpie
 
10. American Eskimo Dog
 
11. Barbet (dog)
 
12. American Pit Bull Terrier
 
13. Australian Shepherd
 
14. Basset Hound
 
15. Bearded Collie
 
16. Bichon Frise
 
17. Boxer (dog)
 
18. Bulldog
 
19. Cane Corso
 
20. Chow Chow
 