A huge number of us decided to welcome new puppies into our homes in the last few years – according to Kennel Club figures dog ownership is at an all-time high.
There are a whopping 221 different breeds of pedigree dog to choose from, alongside numerous crossbreeds, so there’s plenty of thinking to do before you select your family’s latest addition.
Choosing the right breed is absolutely essential – for example opting for a small dog if you don’t have much room at home, or a hypoallergenic dog if you suffer from allergies.
Before they were domesticated, dogs had to fight for everything from food to territory – so signs of aggression were essential to their survival.
Many of these has been bred out to create the perfect family dogs we know today, but some breeds are more likely to retain an aggressive side than others.
There can be good reason for this – for example for those used as service or guard dogs – but prospective owners should be aware that this is the case before choosing to welcome a certain dog into their homes.
It should also be said that individual dogs may display attributes that are unusual for their breed, and all dogs have the potential to be aggressive in certain situations.
Here are the 15 breeds most likely to show signs of aggression – including growling and snapping.

9. Papillon
The key with the Papillon is to socialise them at an early age - otherwise they can become aggressive towards both people and other dogs. Get the training right though, and they can be playful and affectionate pets. | Canva/Getty Images

10. Basenji
The Banenji famously doesn't bark but it's extreme territorial instincts can lead to problematic aggression - particularly towards other dogs. You also wouldn't want to leave them alone with a small pet like a rabbit or hamster - these are dogs with a sky-high prey drive. | Canva/Getty Images

11. Rottweiler
While the Rottweiler's reputation for uncontrolled aggression is slightly unfair, it is a breed of dog that has the potential to be aggressive. The dog's upbringing is key - a well-trained Rottweiler with an experienced owner can be a placid and loving dog, but this isn't a breed for novices. | Canva/Getty Image

12. Alaskan Malamute
What is true of the Husky tends to also be true of the their close cousin the Alaskan Malamute - and that's the case with possible aggression. They are even bigger than Huskies though, meaning it's even more important for them to be trained properly. | Canva/Getty Images

