But never English Cocker Spaniels.
The English Cocker Spaniel
A floppy-eared, innocent-looking breed may be one of the world’s most aggressive dogs, according to a new study that found English cocker spaniels tend to be more hostile than other breeds.
The discovery adds to the mounting evidence that aggressiveness is an inherited characteristic, suggesting that genes and breeding practices can both help determine how a dog will behave.
“In our country and according to our database, the English cocker spaniel is the breed that shows more aggression problems,” lead author Marta Amat told Discovery News.
Amat, a researcher in the School of Veterinary Medicine at the Autonomous University of Barcelona, and her colleagues analyzed 1,040 cases of canine aggression brought to a nearby veterinary teaching hospital from 1998 to 2006. Of those cases, the majority of cases were attributed to English cocker spaniels, Rottweilers, Boxers, Yorkshire terriers and German shepherds.
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