Half of all British bullies ‘descend from US inbred animal called Killer Kimbo’: How decades of inbreeding have created a shallow gene pool of unstable fighting beasts

Half of all Britons XL Bully The dogs could be “descended from an inbred animal from the United States called Killer Kimbo,” genealogical research reveals.

Decades of inbreeding have created a shallow gene pool of unstable fighting beasts that are responsible for 70% of dog attacks in Britain, according to The Telegraph.

‘Killer Kimbo’, who is believed to have sired hundreds of puppies, is the product of two dogs from the same parents. Experts have warned that this restricted group of genes can make dogs unstable and cause genetic diseases.

Secretary of the Interior Braverman sole has pushed for a ban on American XL bully dogs, arguing they are a “clear and lethal danger”, especially to children, after an incident he saw Ana Paun, 11 years old, wild in a ferocious fury.

The XL Bully breed has become one of the most fashionable in the UK with puppies selling for over £2,500, often sold to families who are said to be placid and safe around children .

one West London street is ‘living in fear’ as nightmare dogs plague their community after escaping their cages, mauling two cats, chasing children and attacking dog walkers.

Kimbo is known for his size and strength in the XL Bully community, he is responsible for half of the British dogs currently on the market.

His breeder, Gustavo Castro, is based in the Huntington Park neighborhood of Los Angeles. On his social networks he is depicted holding and playing with the beast.

Campaign group BullyWatch says Kimbo products are responsible for at least ten violent incidents worldwide; the actual quantity is impossible to trace.

BullyWatch scientist and campaigner Gloria Zsigmond said: “Kimbo’s offspring became very, very popular and they still are in the UK to this day,” adding that it was “extremely worrying”.

After hundreds of hours of research using family trees posted by breeders, Ms. Zsigmond found that 32 of the 50 breeding dogs were related to Kimbo.

She said: “Many times Bully breeders try to hide the inbreeding of the dogs.”

“Kimbo bled into all those bloodlines because he was so early and so dominant in breeding. There are good bloodlines where Kimbo isn’t, but there are plenty where he is,” he told The Telegraph.

Andre Smith, owner of Los Angeles-based Big Gemini Kennels, said Kimbo’s owner should have stopped breeding the dog after the first attacks were reported.

The investigation comes as schoolgirl Ana Paun spoke exclusively to MailOnline about the time she was savaged by a dangerous Bully XL dog.

The 11-year-old told how the powerful bulldog breed “who was suffering from heat exhaustion” pounced on her after being left loose on a bus shelter in Birmingham as she walked home after buying sweets with her sister

A traumatized Ana said: “The dog came to me out of nowhere. I was walking to the shop with my older sister and the dog was with its owner, who was standing by a canopy bus

“The dog looked at me and as I approached it suddenly jumped up and bit my arm, it didn’t look away from me and continued to look while biting.

“It latched onto my arm and wouldn’t let go. I screamed as loud as I could.

“The dog knocked me to the ground and was still attacking me. A man helped me and hit the dog which freed him from my arm, but then he lunged at me again and bit my shoulder.

“I was in shock but another man managed to grab the dog from behind and get him off me. The dog then chased someone else into the petrol station and attacked him in the front.

“I managed to get off the floor at this point and ran into the store with my sister to safety. There was a lot of blood pouring from my arm. Staff called the police and an ambulance and I was taken away at Heartlands Hospital.

He added: “I thought it was going to attack my face and neck and I was going to die.

“I kept screaming and screaming, I was petrified.”

The mother of 10-year-old Jack Lis, who died after being mauled by a seven-stone Bully XL dog, has called for the law to be changed, saying “enough is enough”.

Emma Whitfield’s son suffered catastrophic injuries after going to play at a house in Caerphilly, South Wales.

He wants tougher penalties for owners of dangerous dogs to be considered, as well as stricter rules to stop illegal and irresponsible breeding and selling.

“It’s amazing how it keeps happening. It should never have happened to Jack, but why hasn’t anyone learned about it?

‘Innocent people are dying. The Government must act now. It’s out of control and people are losing their children because of it. I want this not to happen,” he said.

Numerous online ads for XL Bullies include references to Kimbo; his descendants include the Unstoppable Juggernaut, the Joker and Frank Sinatra.

The breeding of American bullies has become a multi-million pound industry since its rapid expansion in the US, which has resulted in a dog’s dominance in the pedigree of violent animals in Britain.

Almost half of all dog attack injuries were from the breed, which make up around 1 per cent of the UK’s dog population, making them around 270 times more deadly than the average dog.

“This is exactly what you would expect from a fighting breed that has been repeatedly bred for exotic styles, colors and sizes,” said Dr Lawrence Newport, a legal academic who supports the dog ban.

“We found it, of course, to our terrible cost.

“It’s only been a few years since we’ve allowed a single pit bull cross into the country. And the effects have been very immediate and devastating.”