Jack Russell terriers have topped the list of dogs most likely to attack humans.
Merseyside Police found more reports of canine attacks on humans involving Jack Russells than any other breed in 2015.
The terriers were found to be more aggressive than other breeds of dogs that are perceived to be aggressive, like pit bulls or bull terriers.
Last year, Jack Russells were responsible for six of 71 dog attacks in Liverpool, nearly double the number of attacks in 2014.
Pitbulls and Staffordshire bull terriers accounted for five of last year’s recorded incidents, while German Shepherds attacked humans on three separate occasions.
An angry Chihuahua also reportedly attacked someone in its way.
Jack Russels are hunting dogs with high energy levels, making them demanding even for experienced dog owners.
Dog wardens in Bradford said last month Jack Russells are one of the most abandoned breeds due to its aggressive nature.
The A-Z of dogs in pictures
A recent study by legal service Simpson Millar LLP found Liverpool to be one of the worst cities for the number of dog attacks that lead to people needing hospital treatment.
The rate of dog attacks in Liverpool is more than twice the national average, averaging at 13 victims per 100,000 people, according to the report.
But Philip Gower of Simpson Millar told The Sun that in 20 years of experience with dog attack cases, the case “is usually down to the owner”.
Beverley Cuddy, editor of ethical pets magazine Dogs Today, told the Liverpool Echo that dog owners need help making sure they are “better educated about their dogs” and suggests attending handling sessions.